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Considering the alarming importance of CSAT in UPSC CSE Prelims exam and with enormous requests we received recently, InsightsIAS has started Daily CSAT Test to ensure students practice CSAT Questions on a daily basis. Regular Practice would help one overcome the fear of CSAT too.
We are naming this initiative as Insta– DART – Daily Aptitude and Reasoning Test. We hope you will be able to use DART to hit bull’s eye in CSAT paper and comfortably score 100+ even in the most difficult question paper that UPSC can give you in CSP-2021. Your peace of mind after every step of this exam is very important for us.
Looking forward to your enthusiastic participation (both in sending us questions and solving them on daily basis on this portal).
Wish you all the best ! 🙂
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Question 1 of 5
1. Question
Find a positive number which when increased by 17 is equal to 60 times the reciprocal of the number.
Correct
Answer: Option A) 3
Explanation:
Let the number be x.
Then, x + 17 = 60/x
X2 + 17x – 60 = 0
(x + 20)(x – 3) = 0
x = 3.
Incorrect
Answer: Option A) 3
Explanation:
Let the number be x.
Then, x + 17 = 60/x
X2 + 17x – 60 = 0
(x + 20)(x – 3) = 0
x = 3.
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Question 2 of 5
2. Question
A library has an average of 510 visitors on Sundays and 240 on other days. The average number of visitors per day in a month of 30 days beginning with a Sunday is:
Correct
Answer: Option D) 285
Explanation:
Since the month begins with a Sunday, to there will be five Sundays in the month.
Required average
=(510 x 5 + 240 x 25) /30
=8550/30
= 285
Incorrect
Answer: Option D) 285
Explanation:
Since the month begins with a Sunday, to there will be five Sundays in the month.
Required average
=(510 x 5 + 240 x 25) /30
=8550/30
= 285
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Question 3 of 5
3. Question
The simple interest on a certain sum of money for 2(1/2) years at 12% per annum is Rs. 40 less than the simple interest on the same sum for 3(1/2) years at 10% per annum. Find the sum.
Correct
Correct Answer: D) 800rs
Let the sum be Rs. x.
Then we can write: [{x×10×7}/ {100×2}] – [{x×12×5}/{100×2}] = 40.
This can be written as: 7x/20 – 3x / 10 = 40.
Therefore we have x = Rs. 800
Incorrect
Correct Answer: D) 800rs
Let the sum be Rs. x.
Then we can write: [{x×10×7}/ {100×2}] – [{x×12×5}/{100×2}] = 40.
This can be written as: 7x/20 – 3x / 10 = 40.
Therefore we have x = Rs. 800
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Question 4 of 5
4. Question
A, B and C shared profits in ratio of 5:7:8. They partnered for 14 months, 8 months and 7 months respectively. What was the ratio of their investments?
Correct
Correct Answer : A) 20:49:64
Simply multiply profit sharing ratio with investment ratio to get investment amount ratio.
Let x be the total investment.
14x = 5.
8y = 7.
7z = 8.
Final investment ratio = x : y : z = 20:49:64.
Incorrect
Correct Answer : A) 20:49:64
Simply multiply profit sharing ratio with investment ratio to get investment amount ratio.
Let x be the total investment.
14x = 5.
8y = 7.
7z = 8.
Final investment ratio = x : y : z = 20:49:64.
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Question 5 of 5
5. Question
The difference between Compound Interest and Simple Interest on certain sum at the end of two years at 4% interest rate is Rs.10. What is the sum?
Correct
Solution: b) Rs.6250
Explanation:
Incorrect
Solution: b) Rs.6250
Explanation:
