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If 25 men can eat 150 kg of wheat in 30 days then 45 men can eat 450 kg of wheat in how many days?

Correct answer: B. 50 days

  • A. 13 days
  • B. 50 days
  • C. 15 days
  • D. 18 days

Explanation

The wheat consumption rate is 150 kg ÷ (25 men × 30 days). The time for 45 men to consume 450 kg is 450 kg × (25 men × 30 days) ÷ (150 kg × 45 men) = 50 days. The likely mistake is choosing 15 days by increasing the number of men and forgetting that the wheat quantity also increases from 150 kg to 450 kg.

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