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The 60 Days Rapid Revision (RaRe) Series is IASbaba’s Flagship Initiative recommended by Toppers and loved by the aspirants’ community every year.
It is the most comprehensive program which will help you complete the syllabus, revise and practice tests on a daily basis. The Programme on a daily basis includes
Daily Prelims MCQs from Static (Monday – Saturday)
Daily Current Affairs MCQs (Monday – Saturday)
Daily CSAT Quiz (Monday – Friday)
Note – Daily Test of 20 static questions, 10 current affairs, and 5 CSAT questions. (35 Prelims Questions) in QUIZ FORMAT will be updated on a daily basis.
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The following Test is based on the syllabus of 60 Days Plan-2025 for UPSC IAS Prelims 2025.
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Consider the following provisions of the Indian Constitution:
Which of the above provisions need a “special majority as well as the consent of at least half of the states” for their amendment?
Solution (b)
Explanation:
The manner of elections to Parliament and state legislatures can be amended by Simple Majority of the Parliament. Hence, 4th option is not correct.
Solution (b)
Explanation:
The manner of elections to Parliament and state legislatures can be amended by Simple Majority of the Parliament. Hence, 4th option is not correct.
Consider the following statements:
Statement I: An amendment to the Indian Constitution can only be initiated by the Parliament.
Statement II: The Indian Constitution does not have any provision for a special body like Constitutional Convention, which is present in USA.
Which one of the following is correct in respect of the above statements?
Solution (d)
Explanation:
There is no provision for a special body like Constitutional Convention (as in USA) or Constitutional Assembly for amending the Constitution. The constituent power is vested in the Parliament and only in few cases, in the state legislatures. Hence, Statement-II is correct.
Solution (d)
Explanation:
There is no provision for a special body like Constitutional Convention (as in USA) or Constitutional Assembly for amending the Constitution. The constituent power is vested in the Parliament and only in few cases, in the state legislatures. Hence, Statement-II is correct.
Consider the following pairs:
Constitution Procedure of Amendment
How many of these pairs is/are correctly matched?
Solution (a)
Explanation:
On the other hand, the Indian Constitution follows a pragmatic approach for amendment which is neither flexible nor rigid but a synthesis of both. Hence, 3rd pair is correctly matched.
Solution (a)
Explanation:
On the other hand, the Indian Constitution follows a pragmatic approach for amendment which is neither flexible nor rigid but a synthesis of both. Hence, 3rd pair is correctly matched.
Consider the following about Constitutional Amendment Bill:
Which of the above statements is/are INCORRECT?
Solution (c)
Explanation:
For a Constitutional Amendment Bill to become an Act, the bill must be passed in each House by a special majority, i.e., majority of the total membership of the House and majority of two-thirds of the members of the House present and voting. There is no requirement that such a bill must be ratified by three-fourths of the states. Hence, statement 2 is also INCORRECT.
Solution (c)
Explanation:
For a Constitutional Amendment Bill to become an Act, the bill must be passed in each House by a special majority, i.e., majority of the total membership of the House and majority of two-thirds of the members of the House present and voting. There is no requirement that such a bill must be ratified by three-fourths of the states. Hence, statement 2 is also INCORRECT.
Which of the following is Considered as an important feature of “Parliamentary System of Government”?
Choose the correct option using codes given below:
Solution (c)
Explanation:
• Parliamentary System of Government reflects the rule of majority. Hence, statement 2 is Correct.
Solution (c)
Explanation:
• Parliamentary System of Government reflects the rule of majority. Hence, statement 2 is Correct.
The amendment to the Indian Constitution by Parliament is limited by the “Doctrine of Basic Structure.” In which case this doctrine was propounded by the Supreme Court?
Solution (c)
Explanation:
Article 368 in Part XX of the Constitution deals with the powers of Parliament to amend the Constitution and its procedure. It states that the Parliament may, in exercise of its constituent power can amend any provision of the Constitution in accordance with the procedure laid down for the purpose. However, this power was limited by the Supreme Court through its judgement in the Kesavananda Bharati case (1973) where it held that the Parliament cannot amend those provisions which form the ‘basic structure’ of the Constitution. Hence option c is correct.
Solution (c)
Explanation:
Article 368 in Part XX of the Constitution deals with the powers of Parliament to amend the Constitution and its procedure. It states that the Parliament may, in exercise of its constituent power can amend any provision of the Constitution in accordance with the procedure laid down for the purpose. However, this power was limited by the Supreme Court through its judgement in the Kesavananda Bharati case (1973) where it held that the Parliament cannot amend those provisions which form the ‘basic structure’ of the Constitution. Hence option c is correct.
Which of the following process of amendments is mentioned under Article 368?
Select the correct answer using the given code:
Solution (b)
Explanation:
Article 368 provides for only two types of amendments. The first way is to amend the Constitution by special majority of the Parliament. And the second way is through the amendment by special majority of the Parliament and the ratification of half of the state legislatures. Hence the 1st option is incorrect while the 2nd and 3rd options are correct.
Solution (b)
Explanation:
Article 368 provides for only two types of amendments. The first way is to amend the Constitution by special majority of the Parliament. And the second way is through the amendment by special majority of the Parliament and the ratification of half of the state legislatures. Hence the 1st option is incorrect while the 2nd and 3rd options are correct.
The procedure of impeachment of the President of India is taken from?
Solution (b)
Explanation:
Solution (b)
Explanation:
With reference to the Presidential form of government, consider the following statements:
How many of the statements given above is/are correct?
Solution (b)
Explanation:
• Presidents in the presidential system have Qualified vetoes to counter the bills by the legislature. The Qualified veto refers to a veto power that is not absolute and can be overridden by a certain majority in the legislature. In contrast to an absolute veto, where the President’s decision cannot be overturned, a qualified veto can be overridden under specific conditions. Hence, statement 3 is correct.
Solution (b)
Explanation:
• Presidents in the presidential system have Qualified vetoes to counter the bills by the legislature. The Qualified veto refers to a veto power that is not absolute and can be overridden by a certain majority in the legislature. In contrast to an absolute veto, where the President’s decision cannot be overturned, a qualified veto can be overridden under specific conditions. Hence, statement 3 is correct.
With reference to the parliamentary form of government in India, consider the following statements:
How many of the statements given above is/are correct?
Solution (a)
Explanation:
• The Prime Minister can be a member of either the Lok Sabha (House of the People) or the Rajya Sabha (Council of States). However, if the Prime Minister is not a member of the Lok Sabha at the time of appointment, they must be elected to it within six months. Hence Statement 2 is correct.
Solution (a)
Explanation:
• The Prime Minister can be a member of either the Lok Sabha (House of the People) or the Rajya Sabha (Council of States). However, if the Prime Minister is not a member of the Lok Sabha at the time of appointment, they must be elected to it within six months. Hence Statement 2 is correct.
Consider the following statements:
Which of the statements given above is/are correct?
Solution (d)
Explanation:
As per the Article 53(1), the executive power of the Union shall be vested in the President and shall be exercised by him either directly or through Officers subordinate to him in accordance with this Constitution. Hence, statement 1 is incorrect.
The Cabinet Secretary is the top-most executive official and senior-most civil servant of the Government of India and he/she is the ex-officio head of the Civil Services Board. Hence, statement 2 is incorrect.
Solution (d)
Explanation:
As per the Article 53(1), the executive power of the Union shall be vested in the President and shall be exercised by him either directly or through Officers subordinate to him in accordance with this Constitution. Hence, statement 1 is incorrect.
The Cabinet Secretary is the top-most executive official and senior-most civil servant of the Government of India and he/she is the ex-officio head of the Civil Services Board. Hence, statement 2 is incorrect.
With reference to the election of the President of India, consider the following statements:
Which of the statements given above is/are correct?
Solution (a)
Explanation:
The President of India is elected indirectly by the Electoral College and it is conducted in accordance with the system of proportional representation by means of single transferable vote.
The President of India is elected by an electoral college consisting of:
Elected members of the two Houses of Parliament and Legislative Assemblies of the States
States Includes national capital territory of Delhi and the Union territory of Pondicherry.
Do not participate: Nominated members of both the houses of the parliament & of state legislative assemblies and all the members of legislative councils of states liberty. In India the powers of the government are limited by means of the Fundamental Rights enshrined in the Part III of the Indian Constitution, which are essentially given to us against the state actions.
Value of Vote: The value of votes of MLAs would differ from State to State as it is based on population criterion and population of each state has a different value. Hence, statement 1 is correct.
The value of vote of each MP is the same whether it is Lok Sabha or Rajya Sabha. There shall be uniformity in the scale of representation of the different states at the election of the President as follows:
Value of vote of an MLA of a state: (Population of state/Total number of elected members of state legislative assembly) * 100
Value of vote of an MP: (Total value of votes of MLA’s of all states/Total number of elected members parliament) * 100 Hence, statement 2 is incorrect.
Solution (a)
Explanation:
The President of India is elected indirectly by the Electoral College and it is conducted in accordance with the system of proportional representation by means of single transferable vote.
The President of India is elected by an electoral college consisting of:
Elected members of the two Houses of Parliament and Legislative Assemblies of the States
States Includes national capital territory of Delhi and the Union territory of Pondicherry.
Do not participate: Nominated members of both the houses of the parliament & of state legislative assemblies and all the members of legislative councils of states liberty. In India the powers of the government are limited by means of the Fundamental Rights enshrined in the Part III of the Indian Constitution, which are essentially given to us against the state actions.
Value of Vote: The value of votes of MLAs would differ from State to State as it is based on population criterion and population of each state has a different value. Hence, statement 1 is correct.
The value of vote of each MP is the same whether it is Lok Sabha or Rajya Sabha. There shall be uniformity in the scale of representation of the different states at the election of the President as follows:
Value of vote of an MLA of a state: (Population of state/Total number of elected members of state legislative assembly) * 100
Value of vote of an MP: (Total value of votes of MLA’s of all states/Total number of elected members parliament) * 100 Hence, statement 2 is incorrect.
Consider the following statements:
How many of the above statements are correct?
Solution (d)
Explanation:
If the election of a person as President is declared void by the Supreme Court, acts done by him before the date of such declaration of the Supreme Court are not invalidated and continue to remain in force. Hence, statement 1 is not correct.
Where an assembly is dissolved, the members cease to be qualified to vote in Presidential elections, even if fresh elections to the dissolved assembly are not held before the Presidential elections. Hence, statement 2 is not correct.
When a bill is sent to the President after it has been passed by the Parliament, he can give his assent to the bill, withhold his assent to the bill or return the bill (if it is not a money bill) for reconsideration of the Parliament. No time limit has been fixed by the Constitution within which the President has to give his/her assent to the bill. Hence, statement 3 is not correct.
Solution (d)
Explanation:
If the election of a person as President is declared void by the Supreme Court, acts done by him before the date of such declaration of the Supreme Court are not invalidated and continue to remain in force. Hence, statement 1 is not correct.
Where an assembly is dissolved, the members cease to be qualified to vote in Presidential elections, even if fresh elections to the dissolved assembly are not held before the Presidential elections. Hence, statement 2 is not correct.
When a bill is sent to the President after it has been passed by the Parliament, he can give his assent to the bill, withhold his assent to the bill or return the bill (if it is not a money bill) for reconsideration of the Parliament. No time limit has been fixed by the Constitution within which the President has to give his/her assent to the bill. Hence, statement 3 is not correct.
Proportional representation is not necessary country where in a
Solution (b)
Explanation:
Proportional representation, designed to reflect the diverse opinions of an electorate, becomes redundant in nations where a dominant two-party system prevails. Unlike in proportional representation systems where candidates need to secure over 50% of the votes to win, in a two-party setup, this threshold is effectively guaranteed for one of the parties. Thus, the implementation of proportional representation becomes unnecessary in such contexts. Hence, Option (b) is correct answer.
Solution (b)
Explanation:
Proportional representation, designed to reflect the diverse opinions of an electorate, becomes redundant in nations where a dominant two-party system prevails. Unlike in proportional representation systems where candidates need to secure over 50% of the votes to win, in a two-party setup, this threshold is effectively guaranteed for one of the parties. Thus, the implementation of proportional representation becomes unnecessary in such contexts. Hence, Option (b) is correct answer.
Which of the following Powers can be exercised by both the President and Governor?
Solution (c)
Explanation:
Under Article 72 and 161 of the Constitution the President and the Governor have the power to grant Pardons, reprieve, respite or remissions of punishment or to suspend, remit or commute the sentence of any person convicted of any offence. Hence, Option (c) is correct answer.
Solution (c)
Explanation:
Under Article 72 and 161 of the Constitution the President and the Governor have the power to grant Pardons, reprieve, respite or remissions of punishment or to suspend, remit or commute the sentence of any person convicted of any offence. Hence, Option (c) is correct answer.
Test question
Test explained
Test explained
Disputes regarding the election of President and Vice President are settled by:
Solution (a)
Explanation:
All doubts and disputes arising with election of the President and vice President are enquired and decided by the Supreme Court of India. Hence, Option (a) is correct answer.
Solution (a)
Explanation:
All doubts and disputes arising with election of the President and vice President are enquired and decided by the Supreme Court of India. Hence, Option (a) is correct answer.
In context of the local governance in India, for which of the following representatives the direct elections is mandatory as per the 73rd Constitutional Amendment Act, 1992?
Select the correct answer using the code given below.
Solution (c)
Explanation:
• The Legislature of a State may, by law, provide for the manner of election of the Chairperson of a Municipality. That is, the states may provide for indirect elections as well. Hence options 1 and 2 are not correct.
Solution (c)
Explanation:
• The Legislature of a State may, by law, provide for the manner of election of the Chairperson of a Municipality. That is, the states may provide for indirect elections as well. Hence options 1 and 2 are not correct.
Consider the following statements about the Vice president of India
Choose the correct statement using correct codes:
Solution (a)
Explanation:
Vice President is the second highest office in the constitution after president. Hence statement 1 is correct.
Dr. Sarvapalli Radhakrishanan was the first to be elected unopposed. Hence statement 2 is incorrect.
Solution (a)
Explanation:
Vice President is the second highest office in the constitution after president. Hence statement 1 is correct.
Dr. Sarvapalli Radhakrishanan was the first to be elected unopposed. Hence statement 2 is incorrect.
The 74th Constitutional Amendment Act of 1992 led to:
Select the correct answer using the code given below.
Solution (b)
Explanation:
The subject of ‘local government’ was placed as item 5 under the State list since the inception of the Constitution of India. No transfer has ever taken place. Hence statement 1 is not correct.
While the 74th Amendment Act of 1992 added a new Twelfth Schedule to the Constitution. This schedule contains eighteen functional items of municipalities. It deals with Article 243-W. Hence statement 2 is correct.
Solution (b)
Explanation:
The subject of ‘local government’ was placed as item 5 under the State list since the inception of the Constitution of India. No transfer has ever taken place. Hence statement 1 is not correct.
While the 74th Amendment Act of 1992 added a new Twelfth Schedule to the Constitution. This schedule contains eighteen functional items of municipalities. It deals with Article 243-W. Hence statement 2 is correct.
Consider the following statements regarding Anti defection law:
Which of the statements given above are correct?
Solution (c)
Explanation:
The 52nd Amendment Act of 1985 provided for the disqualification of the members of parliament and the state legislatures on the ground of defection from one political party to another and added a new schedule (the 10th schedule) to the constitution. This act is often referred to as the ‘anti-defection law’. Hence statement 1 is correct.
Any question regarding disqualification arising out of defection is to be decided by the presiding officer of the house. Hence his decision like that of any other tribunal is subject to judicial review on the grounds of malafides, perversity. etc. Hence statement 2 is correct.
Solution (c)
Explanation:
The 52nd Amendment Act of 1985 provided for the disqualification of the members of parliament and the state legislatures on the ground of defection from one political party to another and added a new schedule (the 10th schedule) to the constitution. This act is often referred to as the ‘anti-defection law’. Hence statement 1 is correct.
Any question regarding disqualification arising out of defection is to be decided by the presiding officer of the house. Hence his decision like that of any other tribunal is subject to judicial review on the grounds of malafides, perversity. etc. Hence statement 2 is correct.
With reference to the Battle of Haldighati, consider the following statements:
Which of the above statements is/are INCORRECT?
Solution (c)
Context:
Explanation:
The First Battle of Panipat was fought between the invading forces of Babur and the Lodi Empire, which took place on 21 April 1526 in North India. It marked the beginning of the Mughal Empire. It was one of the earliest battles involving gunpowder firearms and field artillery. Hence, statement 2 is INCORRECT.
Solution (c)
Context:
Explanation:
The First Battle of Panipat was fought between the invading forces of Babur and the Lodi Empire, which took place on 21 April 1526 in North India. It marked the beginning of the Mughal Empire. It was one of the earliest battles involving gunpowder firearms and field artillery. Hence, statement 2 is INCORRECT.
Consider the following countries:
Arrange these countries from West to East:
Solution (d)
Context:
Explanation:
The West Asia-North Africa (WANA) region is a geopolitical and cultural area that encompasses countries in the western part of Asia and the northern part of Africa. It includes countries like Saudi Arabia, Iran, Iraq, Israel, Syria, Turkey, Yemen, Qatar, Bahrain, Kuwait, Egypt, Libya, Tunisia, Algeria, etc. This region is home to some of the world’s oldest civilizations, including Mesopotamia, Ancient Egypt, and the Persian Empire. Hence, option d is the correct answer.
Solution (d)
Context:
Explanation:
The West Asia-North Africa (WANA) region is a geopolitical and cultural area that encompasses countries in the western part of Asia and the northern part of Africa. It includes countries like Saudi Arabia, Iran, Iraq, Israel, Syria, Turkey, Yemen, Qatar, Bahrain, Kuwait, Egypt, Libya, Tunisia, Algeria, etc. This region is home to some of the world’s oldest civilizations, including Mesopotamia, Ancient Egypt, and the Persian Empire. Hence, option d is the correct answer.
With reference to POSHAN Abhiyaan, consider the following statements:
Which of the above statements are correct?
Solution (d)
Context:
Explanation:
Solution (d)
Context:
Explanation:
Which of the following statements are correct about India Semiconductor Mission (ISM):
Which of the above statements are correct?
Solution (b)
Context:
Explanation:
Semiconductors are materials which have a conductivity between conductors (generally metals) and non-conductors or insulators (such as ceramics). These are employed in the manufacture of various kinds of electronic devices, including diodes, transistors, and integrated circuits. Germanium and silicon are the most common examples of semiconductors. Hence, statement 3 is correct.
Solution (b)
Context:
Explanation:
Semiconductors are materials which have a conductivity between conductors (generally metals) and non-conductors or insulators (such as ceramics). These are employed in the manufacture of various kinds of electronic devices, including diodes, transistors, and integrated circuits. Germanium and silicon are the most common examples of semiconductors. Hence, statement 3 is correct.
With respect to the Law Commission of India, consider the following statements:
How many of the above statements is/are correct?
Solution (a)
Context:
Explanation:
Solution (a)
Context:
Explanation:
Consider the following statements:
How many of the above statements is/are correct?
Solution (b)
Context:
Explanation:
Solution (b)
Context:
Explanation:
Consider the following fields:
In which of above fields and disciplines, the Padma awards can be given?
Solution (d)
Context:
Explanation:
Solution (d)
Context:
Explanation:
With respect to food irradiation, consider the following statements:
Which of the above statements are correct?
Solution (d)
Context:
Explanation:
This method reduces the risk of food-borne illnesses by eliminating harmful microorganisms. It also prevents spoilage by slowing down the process of decay and minimises food loss by delaying premature ripening, germination, or sprouting. It also reduces the need for chemical preservatives, contributing to a more sustainable food supply chain. Hence, statement 3 is correct.
Solution (d)
Context:
Explanation:
This method reduces the risk of food-borne illnesses by eliminating harmful microorganisms. It also prevents spoilage by slowing down the process of decay and minimises food loss by delaying premature ripening, germination, or sprouting. It also reduces the need for chemical preservatives, contributing to a more sustainable food supply chain. Hence, statement 3 is correct.
The India Development Update Report, sometime seen in news is released by?
Solution (a)
Context:
Explanation:
Solution (a)
Context:
Explanation:
Consider the following statements about Loss and Damage Fund (LDF):
Which of the above statements are correct?
Solution (c)
Context:
Explanation:
Solution (c)
Context:
Explanation:
Passage – 1
Due to the unconventional manufacturing of IoT devices and the vast amount of data they handle, there’s a constant threat of cyber-attacks. Several high-profile incidents where a common IoT device was used to infiltrate and attack the larger network have drawn attention to the need for IoT security. The ever-looming possibility of vulnerabilities, data breaches and other risks associated with IoT device usage underscores the urgent need for strong IoT security. IoT security is vital for enterprises, as it includes a wide range of techniques, strategies, protocols, and actions that aim to mitigate the increasing IoT vulnerabilities of modern businesses. For those deploying IoT systems, hardware security and authentication are critical measures.
Q.31) Based on the above passage, the following assumptions have been made:
2. One of the ways to secure IoT devices is to enhance their data-handling capacities. Which of the above assumptions is/are valid?
Solution (a)
Explanation:
Assumption 1 is correct: The given assumption is based on the lines “IoT security is vital for enterprises, as it includes a wide range of techniques, strategies, protocols, and actions that
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aim to mitigate the increasing IoT vulnerabilities of modern businesses.” These lines show that if IoT is not secured then it may make modern businesses vulnerable to cyber-attacks which can have serious economic implications. Hence, this assumption is correct as per the passage.
Assumption 2 is incorrect: The given assumption is based on the lines “Due to the unconventional manufacturing of IoT devices and the vast amount of data they handle, there’s a constant threat of cyber-attacks.” These lines show that IoT is under constant threat due to unconventional manufacturing of IOT devices, and the huge data they handle. This does not mean that their data handling capacities are not good. So, to assume that enhancing data handling capacities is a way to secure IoTs is not correct as per the passage.
Solution (a)
Explanation:
Assumption 1 is correct: The given assumption is based on the lines “IoT security is vital for enterprises, as it includes a wide range of techniques, strategies, protocols, and actions that
IASBABA’S DAY 13-60 DAY PLAN
aim to mitigate the increasing IoT vulnerabilities of modern businesses.” These lines show that if IoT is not secured then it may make modern businesses vulnerable to cyber-attacks which can have serious economic implications. Hence, this assumption is correct as per the passage.
Assumption 2 is incorrect: The given assumption is based on the lines “Due to the unconventional manufacturing of IoT devices and the vast amount of data they handle, there’s a constant threat of cyber-attacks.” These lines show that IoT is under constant threat due to unconventional manufacturing of IOT devices, and the huge data they handle. This does not mean that their data handling capacities are not good. So, to assume that enhancing data handling capacities is a way to secure IoTs is not correct as per the passage.
Which one of the following statements best reflects the most critical inference that can be made from the passage given above?
Solution (a)
Explanation:
Option (a) is correct: The given option is based on the following lines “Due to the unconventional manufacturing of IoT devices and the vast amount of data they handle, there’s a constant threat of cyber-attacks” and “IoT security is vital for enterprises, as it includes a wide range of techniques, strategies, protocols, and actions that aim to mitigate the increasing IoT vulnerabilities of modern businesses. For those deploying IoT systems, hardware security and authentication are critical measures.” It shows that IoT needs to be secured considering its vulnerability to cyber-attacks. Also, they are vulnerable due to their large scale manufacturing and the concomitant impact on modern businesses. Hence, their security is crucial and must be taken seriously. So, it is the most rational inference of the passage.
Option (b) is incorrect: This option mentions India, which is not discussed in the passage. So, this option is beyond the scope of the passage.
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Option (c) is incorrect: The given option seems to be correct, but it is not because the passage is not pessimistic about the future based on IoT. The author just lays down the challenges associated with this technology. So, this option is not the best rational inference.
Option (d) is incorrect: The given option is about the implementation of IoT being easy. However, the passage is about security challenges in the context of IoT. Whether the implementation of IoT is easy or not is not discussed in the passage. This option statement is very general in nature, while the passage is very much focused on the security aspect of IoTs. Hence, this option is not the most rational inference of the passage.
Solution (a)
Explanation:
Option (a) is correct: The given option is based on the following lines “Due to the unconventional manufacturing of IoT devices and the vast amount of data they handle, there’s a constant threat of cyber-attacks” and “IoT security is vital for enterprises, as it includes a wide range of techniques, strategies, protocols, and actions that aim to mitigate the increasing IoT vulnerabilities of modern businesses. For those deploying IoT systems, hardware security and authentication are critical measures.” It shows that IoT needs to be secured considering its vulnerability to cyber-attacks. Also, they are vulnerable due to their large scale manufacturing and the concomitant impact on modern businesses. Hence, their security is crucial and must be taken seriously. So, it is the most rational inference of the passage.
Option (b) is incorrect: This option mentions India, which is not discussed in the passage. So, this option is beyond the scope of the passage.
IASBABA’S DAY 13-60 DAY PLAN
Option (c) is incorrect: The given option seems to be correct, but it is not because the passage is not pessimistic about the future based on IoT. The author just lays down the challenges associated with this technology. So, this option is not the best rational inference.
Option (d) is incorrect: The given option is about the implementation of IoT being easy. However, the passage is about security challenges in the context of IoT. Whether the implementation of IoT is easy or not is not discussed in the passage. This option statement is very general in nature, while the passage is very much focused on the security aspect of IoTs. Hence, this option is not the most rational inference of the passage.
Working together, Rudra and Ananya can complete a piece of work in 24 days. Ananya and Chetan can complete the same work in 40 days, while Rudra and Chetan can complete it in 30 days. Find the number of days in which each of them can complete the same work while working alone?
Solution (d)
Explanation
Let Rudra, Ananya and Chetan be R, A and C respectively.
So, Efficiency-wise, 2(A+R+C) = 5 + 3 + 4 = 12
Or (A+R+C) = 6
C = (A+R+C) – (R + A) = 6 – 5 = 1
R = (A+R+C) – (A + C) = 6 – 3 = 3
A = (A+R+C) – (C + R) = 6 – 4 = 2
So, the number of days in which Rudra can complete the same work = 120/3 = 40 days
Similarly, the number of days in which Ananya can complete the same work = 120/2 = 60 days Similarly, the number of days in which Chetan can complete the same work = 120/1 = 120 days Hence, it is clear that option (d) is the right answer.
Solution (d)
Explanation
Let Rudra, Ananya and Chetan be R, A and C respectively.
So, Efficiency-wise, 2(A+R+C) = 5 + 3 + 4 = 12
Or (A+R+C) = 6
C = (A+R+C) – (R + A) = 6 – 5 = 1
R = (A+R+C) – (A + C) = 6 – 3 = 3
A = (A+R+C) – (C + R) = 6 – 4 = 2
So, the number of days in which Rudra can complete the same work = 120/3 = 40 days
Similarly, the number of days in which Ananya can complete the same work = 120/2 = 60 days Similarly, the number of days in which Chetan can complete the same work = 120/1 = 120 days Hence, it is clear that option (d) is the right answer.
Upon observing the water shortage in the village, the Gram Pradhan, Babu Bhaiya, constructed a water tank capable of holding enough water for the entire village for 50 days. It was filled till the brim. However, a sudden discovery was made that there was a leak at the bottom of the tank, resulting in the drainage of 20,000 liters of water daily. Due to this leak, the water supply lasted only 40 days for the entire village. If Ramvilas, a local iron-smith of the village, would have partially plugged the leak the very first day, allowing only 5,000 liters of water to be drained per day, on which day had the tank got emptied?
Solution (c)
Explanation
These are consecutive terms of an AP. Mean of first 5 such numbers will be third such number, which is given to be as 39.
Hence, the series is: 33, 36, 39, 42, 45, 48, 51, 54, 57 and so on.
Now, mean of all the thirteen numbers = {[(13 -1)/2] + l} th term= 7th term from the start, i.e. 51. Hence, option (c) is the right answer.
Solution (c)
Explanation
These are consecutive terms of an AP. Mean of first 5 such numbers will be third such number, which is given to be as 39.
Hence, the series is: 33, 36, 39, 42, 45, 48, 51, 54, 57 and so on.
Now, mean of all the thirteen numbers = {[(13 -1)/2] + l} th term= 7th term from the start, i.e. 51. Hence, option (c) is the right answer.
Examine the following two figures in which the numbers follow a specific pattern.
What is the missing number in the second figure?
Solution (b)
Explanation
In 1st figure: (48 + 24) – (35 + 15) = 22
Similarly in 2nd figure: (39 + 19) – (22 + 17) = 58 – 39 = 19 (Required missing number) Hence, option (b) is the right answer.
Solution (b)
Explanation
In 1st figure: (48 + 24) – (35 + 15) = 22
Similarly in 2nd figure: (39 + 19) – (22 + 17) = 58 – 39 = 19 (Required missing number) Hence, option (b) is the right answer.
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IASbaba