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If 36 men can do a certain piece of work in 25 days, then how many days takes to do it by 15 men?

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days

answer is A.

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Detailed Solution

Given that the 36 men are assigned to work on a piece in 25 days, so one man can do the same work in 25 days is given by

36 × 25

days.
If the same work has been done combinedly, then this becomes,

= 36 × 25 15 = 12 × 25 5 = 12 × 5 = 60

Hence, the correct option is 60 days.

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