A group of people has provisions for 29 days for 24 men. If after 4 days 1/6 of them desert then food will last for?
Correct answer: C. 30 days
- A. 25 days
- B. 28 days
- C. 30 days
- D. 32 days
Explanation
The total supply is 24 men × 29 days = 696 man-days. In the first 4 days, 24 × 4 = 96 man-days are used, leaving 600 man-days; after 1/6 of 24 men desert, 20 men remain, so the food lasts 600 ÷ 20 = 30 more days. The likely mistake is choosing 28 days by ignoring the four days already consumed before the desertion.
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