. 100 men working 7 hours per day can finish a work in 16 days. If 140 men are engaged to finish the work in 10 days, how many hours per day should they work?
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Answer:
8 hours
Step-by-step explanation:
100 men finish a work in 16 days by working = 7 hour
1 men " " 1 " " " =16×100×7
140 " " " 10 " " " =
11200÷(140×10) = 8 hours.
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