Question

A construction crew has just built a new road. They built the road at the rate of 3 km per week. They built 3.84 km of the road. How many weeks did it take them?

Answer 1

`1.28\text{ weeks}`

Step-by-step explanation

The rate at which they built the road is 3 km per week and they built 3.84 km of the road.

To find the time it took to make the road, divide the distance made by the rate:

`\begin{gathered} rate=\frac{\text{distance}}{\text{time}} \\ \text{time}=\frac{\text{distance}}{\text{rate}} \end{gathered}`

Therefore, the time taken (in weeks) is:

`\begin{gathered} \text{time}=(3.84)/(3) \\ \text{time}=1.28\text{ weeks} \end{gathered}`

That is the answer.