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Multiple Choice Questions

Working together P Q and R reap a field in 6 days If P can do it alone in 10 days and Q in 24 ...........

Quantitative Aptitude (RRB NTPC) Time and work

Working together, P, Q and R reap a field in 6 days. If P can do it alone in 10 days and Q in 24 days, in how many days will R alone be able to reap the field?

32 days

40 days

45 days

60 days

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Explanation:

working together P,Q and R reap a field in 6 days.

Work done by them together in 1 day = 1/6

P can do it alone in 10 days

So, P's 1 day work =1/10

Q's 1 day work =1/24

So, R's 1 day work =1/6-(1/10-1/24)=1/40

So, R can do work alone in 40 days

By: Barka Mirza

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Working together P Q and R reap a field in 6 days If P can do it alone in 10 days and Q in 24 ...........

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