Question

The scale of a map is 1 in. = mi. Find each length on the map

Answer 1

The question gives the relationship to be

`1in=21mi`

We will interpolate to solve the question.

First Question: 147 mi

`\begin{gathered} \text{If 1 in = 21 mi} \\ x\text{ in = 147 mi} \end{gathered}`

Cross multiplying,