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A contract to be completed in 56 days an...

A contract to be completed in 56 days and 104 men were set towork each working 8 hours a day. After 30 days, 2/5th of the work is completed. How many additional men may be employed so that the work may be completed in time, each man now working 9 hours a day?

A

60

B

56

C

70

D

42

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The correct Answer is:
B
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