5 men working 8 hours a day can do a piece of work in 18 days.How many persons will complete it working 9 hours a day in 10 days.
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5 person required days to complete the work = 18 × 8 = 144 days for working 1 hour daily. 1 person required = 144 x 5 = 720 days. 9 hours and 10 days means 90 days of 1 hour. so person required to complete the work in 9 hours a day in 10 days = 720/ 90 = 8 .Jan 14, 2018
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