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A contractor undertook to finish a certa...

A contractor undertook to finish a certain work in 124 days and employed 120 men. After 64 days, he found that he had already done `(2)/(3)` of the work. How many men can be discharge now so that the work may finish in time?

A

40

B

50

C

48

D

56

Text Solution

Verified by Experts

The correct Answer is:
D
64 दिनों में पूण किया गया काम = `2/3`
माना प्रत्येक आदमी की क्षमता x है। `therefore` 120x `xx` 64 = `2/3`
`therefore x = 2/(3 xx120 xx 64 ) = (1/(3 xx 120 xx 32))`
शेष दिन = 124-64 = 60
शेष दिन = 1-`2/3` = `(1/3)`
माना y आदमी को हटाया गया `therefore (120 -y ) xx(1)/(3 xx 120 xx 32))xx 60 = 1/3`
120 y = 120 -64 = 56 दिन
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