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Twelve men can do a piece of work in 15 days. How many men are required to complete a work which is three and a half times the original work in 10 days ?

A

18

B

54

C

63

D

70

Text Solution

Verified by Experts

The correct Answer is:
C
Use the concept of variation.
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PEARSON IIT JEE FOUNDATION-TIME AND WORK, PIPES AND CISTERNS-CONCEPT APPLICATION (LEVEL-1)
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