IASbaba’s Daily CSAT Practice Test
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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
A train sets off at 3 pm at the speed of 70 kmph. Another train starts at 4.30 pm in the same direction at the rate of 85 kmph. At what time they will meet?
Correct
Solution (c)
B ———————————-A
105 km
The time gap between the two train is 1.5 hours which means by the time train B sets off the train A would be 105 km ahead of train B (speed of train A is 70 kmph)
Since both the trains are moving in the same direction, as per the relative speed concept
The speed of the trains will be subtracted i.e. 85 – 70 = 15 kmph
To meet the train A, train B will have to cover 105 km with 15 kmph speed
Therefore both the trains will meet after 105/15 = 7 hours
i.e. 4.30 pm + 7 hours = 11.30 pm
Incorrect
Solution (c)
B ———————————-A
105 km
The time gap between the two train is 1.5 hours which means by the time train B sets off the train A would be 105 km ahead of train B (speed of train A is 70 kmph)
Since both the trains are moving in the same direction, as per the relative speed concept
The speed of the trains will be subtracted i.e. 85 – 70 = 15 kmph
To meet the train A, train B will have to cover 105 km with 15 kmph speed
Therefore both the trains will meet after 105/15 = 7 hours
i.e. 4.30 pm + 7 hours = 11.30 pm
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Question 2 of 5
2. Question
A and B are two alloys of copper and zinc prepared by mixing metals in the ratio 7:2 and 7:11 respectively. If equal quantities of A and B are melted to form third alloy C then the ratio of zinc and copper in C is
Correct
Solution (b)
Weight of Alloy A is 9 units and weight of alloy B is 18 units
In order to mix equal quantity of metals their weight should be same
So, we need to double the weight of alloy A i.e. 14:4
Now alloy A = 14:4
Alloy B = 7:11
If we mix both the alloys the ratio becomes 21:15 = 7:5
Therefore the ratio of copper and zinc in alloy C is 7:5 > Zinc & Copper is 5:7.
Incorrect
Solution (b)
Weight of Alloy A is 9 units and weight of alloy B is 18 units
In order to mix equal quantity of metals their weight should be same
So, we need to double the weight of alloy A i.e. 14:4
Now alloy A = 14:4
Alloy B = 7:11
If we mix both the alloys the ratio becomes 21:15 = 7:5
Therefore the ratio of copper and zinc in alloy C is 7:5 > Zinc & Copper is 5:7.
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Question 3 of 5
3. Question
Read the following passage and answer the questions that follow each passage. Your answer to these questions should be based on passage only.
Marcia says that all of her friends have a cell phone, but Marcia’s mom doesn’t want to buy her one. Marcia’s mom doesn’t want Marcia to play video games either. What is more, the Internet scares her. Marcia’s mom says, “If Marcia has a cell phone, how do we know whom she is talking to? Video games are bad for you. The Internet is dangerous and uncontrolled. It’s like having a gun in the house. We should just ban her from using the computer, and I’m not buying her a cell phone until she is eighteen. This is the only way we can be sure that Marcia is safe.”
Marcia’s dad disagrees with Marcia’s mom. Although he agrees that there are some dangers to it, he likes the Internet, and finds it to be very useful. “The trouble is,” he says, “We just can’t stop Marcia from using the Internet, as this would put her at a disadvantage. What is more, I like video games. I think that, when played in moderation, they are fun. Obviously, it is not good to play them without restraint or self-control. Finally, I think Marcia needs a cell phone. We can’t take these things away.”
In paragraph 1, Marcia’s mom says, “It’s like having a gun in the house.” She says this in order to
Correct
Solution (a)
To answer this question, it helps to use context. In paragraph 1, Mom says “The Internet is dangerous and uncontrolled. It’s like having a gun in the house.” Since Mom says that the Internet is dangerous immediately before she compares it to having a gun in the house, we can understand that Mom draws this comparison to illustrate how dangerous she thinks the Internet is. This makes (A) the correct choice. Mom is not arguing that guns can never be safe. Rather, she compares the Internet to guns to express how dangerous she finds the Internet. This makes (B) incorrect. Mom does not encourage Dad to buy a gun, so (C) is not the best choice. Mom compares having the Internet to having a gun in the house. She does this to explain how dangerous the internet is, not explain why the Internet is uncontrolled. This rules out (D).
Incorrect
Solution (a)
To answer this question, it helps to use context. In paragraph 1, Mom says “The Internet is dangerous and uncontrolled. It’s like having a gun in the house.” Since Mom says that the Internet is dangerous immediately before she compares it to having a gun in the house, we can understand that Mom draws this comparison to illustrate how dangerous she thinks the Internet is. This makes (A) the correct choice. Mom is not arguing that guns can never be safe. Rather, she compares the Internet to guns to express how dangerous she finds the Internet. This makes (B) incorrect. Mom does not encourage Dad to buy a gun, so (C) is not the best choice. Mom compares having the Internet to having a gun in the house. She does this to explain how dangerous the internet is, not explain why the Internet is uncontrolled. This rules out (D).
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Question 4 of 5
4. Question
Ankush and Bharath work in a shop and Ankush’s salary is 5/6th of the salary of Bharath. They spend same money of Rs 2000 and after that save all the money. Find the salary of Ankush and Bharath if the ratio of their savings is 4:5.
Correct
Solution (a)
Let Bharath’s salary = Rs x
Ankush’s salary = Rs 5x/ 6
According to the question,
5x/ 6 – 2000: x – 2000 = 4 : 5
5 (5x/ 6 – 2000) = 4 (x – 2000)
25x/ 6 – 10000 = 4x – 8000
25x/ 6 – 4x = 10000 – 8000
X / 6 = 2000
x = 12000
Ankush’s salary = Rs 10,000, Bharath’s salary = Rs 12,000
Incorrect
Solution (a)
Let Bharath’s salary = Rs x
Ankush’s salary = Rs 5x/ 6
According to the question,
5x/ 6 – 2000: x – 2000 = 4 : 5
5 (5x/ 6 – 2000) = 4 (x – 2000)
25x/ 6 – 10000 = 4x – 8000
25x/ 6 – 4x = 10000 – 8000
X / 6 = 2000
x = 12000
Ankush’s salary = Rs 10,000, Bharath’s salary = Rs 12,000
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Question 5 of 5
5. Question
A rectangular block 6 cm by 12 cm by 15 cm is cut up in to an exact number of equal cubes. Find the least possible number of cubes.
Correct
Solution (d)
Volume of the block = (6 × 12 × 15) cm3 = 1080 cm3.
Side of the largest cube = H.C.F. of 6 cm, 12 cm, 15 cm = 3 cm.
Volume of this cube = (3 × 3 × 3) cm3 27 cm3
∴ Number of cubes = (1080/27) = 40
Incorrect
Solution (d)
Volume of the block = (6 × 12 × 15) cm3 = 1080 cm3.
Side of the largest cube = H.C.F. of 6 cm, 12 cm, 15 cm = 3 cm.
Volume of this cube = (3 × 3 × 3) cm3 27 cm3
∴ Number of cubes = (1080/27) = 40
