Question

A distance of 400 km is represented in the map by 3 cm. What is the distance between two towns if they are 7.5 cm apart in the map?​

Answer 1

The distance between the two towns is of 1000 km.

Explanation:

This question is solved by proportions, using a rule of three.

We have that:

3 cm represents a distance of 400 km.

What is the distance represented by 7.5 cm?

3 cm - 400 km

7.5 cm - x km

Applying cross multiplication:

`3x = 400*7.5`

`x = (400*7.5)/(3)`

`x = 1000`

The distance between the two towns is of 1000 km.