10 men working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the same work in 12 days? - IQ786

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10 men working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the same work in 12 days?

10 men working 6 hours a day can complete a work in 18 days. How many hours a day must 15 men work to complete the same work in 12 days?

6 hours

8 hours

10 hours

12 hours

15 hours

Explanation

10men×6hours×18days1work=15men×12days×H hour/day1work⇔6 hours