Arithmetic Ability
Chain Rule

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Q.

A contractor undertakes to do a piece of work in 40 days. He engages 100 men at the begining and 100 more  after 35 days and completes the work in stipulated time. If he had not  engaged  the additional men, how many days  behind schedule would it be finished?

View Answer

Correct choice: B

Explanation:

[(100 x 35) + (200 x 5)]men can finish the work in 1 day Therefore, 4500 men can finish the work in 1 day. 100 men can finish it in 4500/100= 45 days. This is 5 days behind Schedule
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