UPSC CSAT Quiz – 2021: IASbaba’s Daily CSAT Practice Test – 3rd February 2021
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 Date February 3, 2021
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Daily CSAT Practice Test
Everyday 5 Questions from Aptitude, Logical Reasoning, and Reading Comprehension will be covered from Monday to Saturday.
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Question 1 of 5
1. Question
Aryan starts walking from a place at 8 am at a speed of 10 kmph .At 10 am Sanju starts from the same place walking in the same direction at a speed of 15 kmph. When will Sanju meet Aryan?
Correct
Solution (c)
This is a question related to relative speed, since both of them are moving in the same direction the resultant speed will be the difference of the two speeds, i.e.1510=5 kmph
At 10 am Aryan would have travelled 20 km since his speed is 10 kmph
Therefore, Sanju meets Aryan after 20/5=4 hours i.e. at 2 pm
Incorrect
Solution (c)
This is a question related to relative speed, since both of them are moving in the same direction the resultant speed will be the difference of the two speeds, i.e.1510=5 kmph
At 10 am Aryan would have travelled 20 km since his speed is 10 kmph
Therefore, Sanju meets Aryan after 20/5=4 hours i.e. at 2 pm

Question 2 of 5
2. Question
A horse and a carriage together cost 8,000 Rs, if by selling the horse at a profit of 10% and the carriage at a loss of 10%, a total profit of 5% is made, then what is the cost price of the horse?
Correct
Solution (c)
By method of allegation.
15:5=3:1
Hence, cost price of the horse is (3/4)8,000=6,000 Rs
Incorrect
Solution (c)
By method of allegation.
15:5=3:1
Hence, cost price of the horse is (3/4)8,000=6,000 Rs

Question 3 of 5
3. Question
A committee of 3 members is to be selected out of 3 men and 2 women. What is the probability that the committee has at least one woman?
Correct
Solution (a)
Probability of having no woman = 3C3/5C3 = 1/10
Probability of having at least one woman = 1 – 1/10 = 9/10
Incorrect
Solution (a)
Probability of having no woman = 3C3/5C3 = 1/10
Probability of having at least one woman = 1 – 1/10 = 9/10

Question 4 of 5
4. Question
Samantha scores 65% in Mathematics and 82% in Science. Both the papers are of 100 marks. What percentage does she score in English, which is of 50 marks, if she scores an overall 78%?
Correct
Solution (d)
This problem can be easily solved from the method of deviation.
Here the required percentage is 78% and the papers are of 100 marks each
Samantha scores 65% in Mathematics, so the deviation is 13% (13 marks) from 78%
Similarly, she scores 82% in Science, so the deviation is +4% (4 marks) from 78%
Cumulatively there is a deviation of 9%, (9 marks) this has to be compensated in English
Since English paper is for 50 marks, she has to score 39 marks to make 78%
And also, to compensate the deviation of – 9 marks, she has to score 39+9=48 marks out of 50 which is 96%
Incorrect
Solution (d)
This problem can be easily solved from the method of deviation.
Here the required percentage is 78% and the papers are of 100 marks each
Samantha scores 65% in Mathematics, so the deviation is 13% (13 marks) from 78%
Similarly, she scores 82% in Science, so the deviation is +4% (4 marks) from 78%
Cumulatively there is a deviation of 9%, (9 marks) this has to be compensated in English
Since English paper is for 50 marks, she has to score 39 marks to make 78%
And also, to compensate the deviation of – 9 marks, she has to score 39+9=48 marks out of 50 which is 96%

Question 5 of 5
5. Question
Read the following passage and answer the questions that follow each passage. Your answer to these questions should be based on passage only
Patents offer their owners market exclusivity for a limited period of time. For medicines, this exclusivity should last as long as the primary patent — which relates to the active pharmaceutical ingredient (API) of the medicine— is in effect, typically 20 years. The end of patent exclusivity is referred to as a patent cliff, because drug prices fall steeply afterwards owing to generic competition.
But the threat of this precipitous fall in profits drives pharmaceutical companies to find new ways to postpone their exclusivity by filing secondary patents for derivatives and variants of the API, such as a physical variant of the API, a new formulation, a dosage regimen, or a new method of administering the medicine. The secondary patents prop up before the expiry of a primary patent thereby stretching the exclusivity beyond 20 years, a practice that is called “ever greening”. This strategy is most lucrative when employed in the context of socalled blockbuster medicines, which reap annual revenues exceeding $1 billion.
What is the central theme of the passage the author is talking about?
Correct
Solution (c)
Central theme of the passage is nothing but the main idea contained in it. ‘Patents on Medicines’ is the topic of the passage. Whereas, the central theme of the passage is ‘Ever greening of patents’
Incorrect
Solution (c)
Central theme of the passage is nothing but the main idea contained in it. ‘Patents on Medicines’ is the topic of the passage. Whereas, the central theme of the passage is ‘Ever greening of patents’