2018 · Q26
A man undertakes to do a certain work in 150 days. He employs 200 men. He finds that only a quarter of the work is done in 50 days. How many additional men should he employ so that the whole work is finished in time?
Elementary MathematicsTime and Work
- A75
- B85
- C100
- D120
Explanation
In 50 days, 200 men complete 10000 man-days = one quarter of the work, so 30000 man-days remain. With 100 days left, 300 men are needed in all, i.e. 100 additional men, option (C).