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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
A can do a piece of work in 20 days and B can do it in 15 days. How long will they take if both work together?
Correct
Answer : b
A’s one day work will be 5%, while B will do 6.66 % of the work in one day. Hence, their total work will be 11.66% in a day.
In 8 days they will complete → 11.66 x 8 = 93.33% This will leave 6.66% of the work. This will correspond to 4/7 of the ninth day.
Incorrect
Answer : b
A’s one day work will be 5%, while B will do 6.66 % of the work in one day. Hence, their total work will be 11.66% in a day.
In 8 days they will complete → 11.66 x 8 = 93.33% This will leave 6.66% of the work. This will correspond to 4/7 of the ninth day.
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Question 2 of 5
2. Question
A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in:
Correct
Incorrect
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Question 3 of 5
3. Question
Nishu and Archana can do a piece of work in 10 days days and Nishu alone can do it in 12 days. In how many days can Archana do it alone?
Correct
Answer : a
N+ A = 10%
N = 8.33%
Hence A = 1.66% → 60 days.
Incorrect
Answer : a
N+ A = 10%
N = 8.33%
Hence A = 1.66% → 60 days.
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Question 4 of 5
4. Question
Raju is twice as good as Vijay. Together, they finish the work in 14 days. In how many days can Vijay alone do the same work?
Correct
Answer : d
Raju being twice as good a workman as Vijay, You can solve the following equation to get the
Required answer:
1/R + 1/2R = 1/14.
Solving will give you that Vijay takes 42 days.
Incorrect
Answer : d
Raju being twice as good a workman as Vijay, You can solve the following equation to get the
Required answer:
1/R + 1/2R = 1/14.
Solving will give you that Vijay takes 42 days.
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Question 5 of 5
5. Question
Ajay and Vijay undertake to do a piece of work for Rs. 200. Ajay alone can do it in 24 days while alone can do it in 30 days. With the help help of Pradeep they finish the work in 12 days. How much should Pradeep get for his work?
Correct
Answer: a
Ajay’s daily work = 4.1666%. Vijay’s daily work = 3.33% and the daily work of all the three together is 8.33%. Hence, Pradeep’s daily work will be 0.8333%. Hence, he will end up doing 10% of the total work in 12 days. This will mean that he will be paid Rs. 20.
Incorrect
Answer: a
Ajay’s daily work = 4.1666%. Vijay’s daily work = 3.33% and the daily work of all the three together is 8.33%. Hence, Pradeep’s daily work will be 0.8333%. Hence, he will end up doing 10% of the total work in 12 days. This will mean that he will be paid Rs. 20.
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