10 men can finish a job in 15 days. After they have worked for 5 days, 5 more men join them. In how many more days will the job be finished?
A. 6 days
B. 7.5 days
C. 10 days
D. \(6\frac{2}{3}\) days
1 answer
Best answer
Answer: D. \(6\frac{2}{3}\) days
Answer: (D) \(6\frac{2}{3}\) days
Remaining work = 10 men × 10 days = 100 man-days. Now 15 men work, so days = 100 ÷ 15 = \(6\tfrac{2}{3}\).
Doubtly AI
· 27 Oct 2026
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