12 men working 8 hours a day finish a job in 10 days. In how many days will 15 men working 6 hours a day finish it?
A. \(10\frac{2}{3}\) days
B. 9.6 days
C. 10 days
D. 12 days
1 answer
Best answer
Answer: A. \(10\frac{2}{3}\) days
Answer: (A) \(10\frac{2}{3}\) days
Shortcut: M₁D₁H₁ = M₂D₂H₂. 12 × 10 × 8 = 15 × D × 6, so D = \(\frac{960}{90} = 10\tfrac{2}{3}\) days.
Doubtly AI
· 27 Oct 2026
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