2019 · Q25
A stock of food grains is enough for 240 men for 48 days. How long will the same stock last for 160 men?
Elementary MathematicsTime and Work
- A72 days
- B64 days
- C60 days
- D54 days
Explanation
The total man-days of food is fixed: 240 men × 48 days = 11,520 man-days. For 160 men the stock lasts 11520/160 = 72 days. Fewer men means the stock lasts longer, ruling out 54 and 60. The answer is (A) 72 days.