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Q: 24 persons can do a piece of work in 20 days. In how many days can 30 persons do the same work?
  • A. 14
  • B. 16
  • C. 12
  • D. 18
Correct Answer: Option B - M₁ D₁ = M₂D₂ 24 × 20 = 30 × D₂ D₂ = 16 days
B. M₁ D₁ = M₂D₂ 24 × 20 = 30 × D₂ D₂ = 16 days

Explanations:

M₁ D₁ = M₂D₂ 24 × 20 = 30 × D₂ D₂ = 16 days