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A garrison has provision for 30 days for certain men. If 2/3 of them do not attend the mess then the food will last for?

Correct answer: B. 90 days

  • A. 50 days
  • B. 90 days
  • C. 65 days
  • D. 55 days

Explanation

The total food represents 30 x 1 = 30 man-days in units of the original garrison's daily consumption. If 2/3 do not attend, only 1/3 remain, so the food lasts 30 ÷ 1/3 = 90 days. The likely mistake is choosing 50 days, which does not correctly apply the inverse relationship between men and days.

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