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Q.
If 36 men can do a piece of work in 25 hours, in how mwny hours will15 men do it?
A.
40
B.
50
C.
60
D.
70
View Answer
Correct choice: C
Explanation:
Let the required no of hours be x. Then Less men , More hours (Indirct Proportion) Therefore, 15:36 ::25:x => (15 x X)=(36 x 25) => x = 60 Hence, 15 men can do it in 60 hours.
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