Q: a contract was signed to complete a job in 30 days. after how many days can 5 men leave then so that the job can be completed in 35 days
Options:
(A) 30 days.
(B) 35 days.
(C) 45 days.
(D) 55 days.
(E) 65 days. Let's give some random thoughts before answering.
If no of men used initially is x, then after (35-x) days 5 men can leave so that the job can be completed in 35 days.
Therefore, the answer is (B).