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,

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