A contractor undertake to do a piece of work in 40 days. He engages 100 men at t

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A contractor undertake to do a piece of work in 40 days. He engages 100 men at the beginning and 100 more after 35 days and completes the work in stipulated time. If he had not engaged the work in men, how many days behind the scheduled the work should have been finished ?

Options:

A . 5

B . 6

C . 7

D . 8

Answer: Option A

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