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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
The salary of a typist was at first raised by 15% and then the same was reduced by 10%. If he presently draws Rs.1045. What was his original salary?
Correct
Answer: C
Explanation: X * (115/100) * (90/100) = 1045 X * (115/100) * (9/10) = 1 X = 1009
Incorrect
Answer: C
Explanation: X * (115/100) * (90/100) = 1045 X * (115/100) * (9/10) = 1 X = 1009
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Question 2 of 5
2. Question
The least number, which when divided by 12, 15, 20 and 54 leaves in each case a remainder of 8 is:
Correct
Answer : D
Explanation: Required number = (L.C.M. of 12, 15, 20, 54) + 8 = 540 + 8 = 548.
Incorrect
Answer : D
Explanation: Required number = (L.C.M. of 12, 15, 20, 54) + 8 = 540 + 8 = 548.
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Question 3 of 5
3. Question
A sum of money was invested at simple interest at a rate for 5 years. Had it been invested at 3% higher rate, It would have received Rs. 150 more interest. What was the principle amount?
Correct
Answer: B
Explanation: SI for 5 Yrs. = PTR/100 = 5PR/100 SI for 5 Yrs. if invested at 3% more interest rate = 5P(R+3)/100 from data:
Difference between the above interest rates = Rs.150 ie., 5PR/100 – 5P(R+3)/100 = 150 P= Rs. 1000
Incorrect
Answer: B
Explanation: SI for 5 Yrs. = PTR/100 = 5PR/100 SI for 5 Yrs. if invested at 3% more interest rate = 5P(R+3)/100 from data:
Difference between the above interest rates = Rs.150 ie., 5PR/100 – 5P(R+3)/100 = 150 P= Rs. 1000
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Question 4 of 5
4. Question
Pipe A can fill a cistern in 24 Min and pipe B in 36 min. If both opened together, when should pipe B be closed so that the cistern will be filled in 18 minutes.
Correct
Answer : C
Explanation:
Total capacity of the cistern = LCM of 24 & 36 = 72
Time taken by Pipe A to fill cistern = 72/24 = 3
Time taken by Pipe B to fill cistern = 72/36 = 2
Pipe B should be closed after some, rest filling would be done by pipe A alone
Logic —> Pipe A worked for whole 18 minutes
Incorrect
Answer : C
Explanation:
Total capacity of the cistern = LCM of 24 & 36 = 72
Time taken by Pipe A to fill cistern = 72/24 = 3
Time taken by Pipe B to fill cistern = 72/36 = 2
Pipe B should be closed after some, rest filling would be done by pipe A alone
Logic —> Pipe A worked for whole 18 minutes
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Question 5 of 5
5. Question
A, B and C under partnership hire a grassland for ₹7500. A puts in 12 oxen for 10 days, B puts in 8 oxen for 12 days and C puts in 9 oxen for 16 days. The rent paid by C?
Correct
Answer : C
Explanation:
A’s oxen total days = 12 * 10 = 120 days
B’s oxen total days = 8 * 12 = 96 days
C’s oxen total days = 9 * 16 = 144 days A : B :
C = 120 : 96 : 144 = 10 : 8 : 12 C’s share = 12/30 * 7500 = ₹ 3000
Incorrect
Answer : C
Explanation:
A’s oxen total days = 12 * 10 = 120 days
B’s oxen total days = 8 * 12 = 96 days
C’s oxen total days = 9 * 16 = 144 days A : B :
C = 120 : 96 : 144 = 10 : 8 : 12 C’s share = 12/30 * 7500 = ₹ 3000
