80 men can construct a small footpath in 100 days. How many more men should be employed if the job is to be finished in 25 days?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 240.
Work = number of men × days
Work = 80 × 100 ⇒ 8000 man-days
Men required = Work ÷ 25 ⇒ 8000 ÷ 25 ⇒ 320
More men needed = 320 − 80 ⇒ 240