Question

a road crew can repave 1/48 of a road each hour. they must repave a road that is 3/8 miles long. how long will it take the crew to repave the road?

Answer 1

It will take 18 hours.

Explanation:

Given,

The crew can repave
`(1)/(48)` miles,

The length of road they must repave =
`(3)/(8)` miles,

Hence,

`\text{The time taken by them to repave the road}=\frac{\text{The road they must repave}}{\text{The length they repave per hour}}`

`=(3/8)/(1/48)`

`=(144)/(8)`

`=18\text{ hours}`

Answer 2

3/8 / 1/48 = 3/8 x 48/1 = 144/8 = 18 hours