UPSC CSAT Quiz – 2021: IASbaba’s Daily CSAT Practice Test – 28th January 2021
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 Date January 28, 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.
Make the best use of the initiative. All the best!
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Question 1 of 5
1. Question
If Pranith is the brother of the son of Ronith’s son, how is Pranith related to Ronith?
Correct
Solution (d)
Son of Ronith’s son — Grandson;
Brother of Ronith’s grandson — Ronith’s grandson.
So, Pranith is Ronith’s grandson.
Hence, option D is correct.
Incorrect
Solution (d)
Son of Ronith’s son — Grandson;
Brother of Ronith’s grandson — Ronith’s grandson.
So, Pranith is Ronith’s grandson.
Hence, option D is correct.

Question 2 of 5
2. Question
An accurate clock shows 8 o’clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 2 o’clock in the afternoon?
Correct
Solution (d)
Angle traced by the hour hand in 6 hours = (360/12) x 6 = 180 degrees
Incorrect
Solution (d)
Angle traced by the hour hand in 6 hours = (360/12) x 6 = 180 degrees

Question 3 of 5
3. Question
Tickets numbered 1 to 50 are mixed and one ticket is drawn at random. Find the probability that the ticket drawn has a number which is a multiple of 4 or 7?
Correct
Solution (a)
S = {1, 2, 3, …… 49, 50}
E = {4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 7, 14, 21, 35, 42, 49}
n(S) = 50
n(E) = 18
P(E) = n(E)/n(S) = 18/50
Therefore, P(E) = n(E)/n(S) = 9/25
Incorrect
Solution (a)
S = {1, 2, 3, …… 49, 50}
E = {4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 7, 14, 21, 35, 42, 49}
n(S) = 50
n(E) = 18
P(E) = n(E)/n(S) = 18/50
Therefore, P(E) = n(E)/n(S) = 9/25

Question 4 of 5
4. Question
A Shopkeeper sells 2 things – bed set and sofa set, both at the same price of Rs 49,999. In doing so he manages to gain 10% on bed set while he incurred a loss of 10% in selling sofa set. Then the net percentage profit or loss in whole transaction is?
Correct
Solution (c)
When two articles are sold at same price but one of them at a profit and another at a loss and the percentage profit is the same as the percentage loss then there is always loss
And loss = (common gain or loss/10)2
Here, loss % = (10/10)2 = 12 = 1
Incorrect
Solution (c)
When two articles are sold at same price but one of them at a profit and another at a loss and the percentage profit is the same as the percentage loss then there is always loss
And loss = (common gain or loss/10)2
Here, loss % = (10/10)2 = 12 = 1

Question 5 of 5
5. Question
A group wanted to renovate their club. Each member contributed an amount equal to twice the number of members in the club. But the government contributed same amount as the number of members. If each member had contributed the same amount as the number of members and the government had given an amount twice the number of members, then they would have Rs. 210 less. How many members are there?
Correct
Solution (b)
This is very easy problem, here simply take an option and check for the above condition
For ex: take option a = 7
According to the question
7*(2*7) + 7 = 105 Rs
7*7 + (2×7) = 63 Rs
10563 ≠ 210 Rs
Take option 2 = 15
15*(2*15) + 15 = 465 Rs
15*15 + (2*15) = 255 Rs
465255 = 210 R
Incorrect
Solution (b)
This is very easy problem, here simply take an option and check for the above condition
For ex: take option a = 7
According to the question
7*(2*7) + 7 = 105 Rs
7*7 + (2×7) = 63 Rs
10563 ≠ 210 Rs
Take option 2 = 15
15*(2*15) + 15 = 465 Rs
15*15 + (2*15) = 255 Rs
465255 = 210 R