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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
6 men can do a piece of work in 12 days How many men are needed to do the work in 18 days
Correct
Ans. (c)
Here Man. Day = 6 x 12 = 72
m x 18= 72, m = (72/18) = 4
Incorrect
Ans. (c)
Here Man. Day = 6 x 12 = 72
m x 18= 72, m = (72/18) = 4
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Question 2 of 5
2. 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
Ans. (b)
Here x = 20 and y = 15 days required
(xy/(x+y))= (20 x 15)/(20+15) = 300/35 = 8(4/7) days
Incorrect
Ans. (b)
Here x = 20 and y = 15 days required
(xy/(x+y))= (20 x 15)/(20+15) = 300/35 = 8(4/7) days
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Question 3 of 5
3. Question
Nishu and Archana can do a piece of work in 10 days and Nishu alone can do it in 12 days In How many days can Archana do it alone?
Correct
Ans.(a)
One day work of both = (1/10)
and Nishu’s day work = 1/12
So, Archana’s one day work = (1/10 – 1/12) = 2/120 = 1/60
So, 60 days required to finish the work by Archna
Incorrect
Ans.(a)
One day work of both = (1/10)
and Nishu’s day work = 1/12
So, Archana’s one day work = (1/10 – 1/12) = 2/120 = 1/60
So, 60 days required to finish the work by Archna
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Question 4 of 5
4. Question
If 8 boys and 12 women can do a piece of work in 25 days. In how many days can the Work be done by 6 boys and 11 women working together?
Correct
Ans. (d)
8 B +12w= 1/25 ………………………………………(1)
now to calculate
6B+11 w= ?
Incorrect
Ans. (d)
8 B +12w= 1/25 ………………………………………(1)
now to calculate
6B+11 w= ?
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Question 5 of 5
5. Question
Twenty workers can finish a piece of work in 30 days. After how, many days should 5 workers leave the job so that the work is completed in 35 days?
Correct
Ans. (c)
Man x Day = Man.Day
20 x30 = 600
Let 5 workers leave after x days then
20x+ 15 (35 – x)= 600
5x +525 = 600
5x = 75, x = 15
Incorrect
Ans. (c)
Man x Day = Man.Day
20 x30 = 600
Let 5 workers leave after x days then
20x+ 15 (35 – x)= 600
5x +525 = 600
5x = 75, x = 15
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