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the time it takes to lay a sidewalk of a certain type varies directly as the length and inversely as the # of men working. If eight men take 2 days to lay 100 ft, how long will it take 3 men to lay 150 ft??

1 Answer

2 votes
If 8 men ----------------------------- >take 2 days to lay 100 feet

then
they can lay 50 feet in a day.
Each man lays 50/8 or 6.25 feet per day.

3 men can lay 3 * 6.25 = 18.75 feet per day.

150/18.75 = 17.14 days.

the answer is
17.14 days.
User Matti Virkkunen
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