A contractor hires 10 workers who can complete a task in 16 days. After 4 days, he fires 2 workers. How many more days will the remaining workers take to complete the task?
Show answer & explanation
Correct answer: C
Explanation
Total work = 10 × 16 = 160 man-days
Work done in 4 days = 10 × 4 = 40 man-days
Remaining work = 160 − 40 = 120 man-days
Now man-days = 8
Days = 120 / 8 = 15 days