Question

The scale on a map is given as 5 cm to 3.5 km.How far apart are two towns if the distance between two towns on the map is 8 cm ?

Answer 1

5.6km

Explanation:

Using proportion,

Scale: 5cm = 3.5km

Here:. 8cm = xkm

Where, x is an unknown

Cross multiply

x·5 = 3.5·8

Divide both sides by 5

(x·5) / 5 = (3.5·8) / 5

Therefore x = 3.5 * (8/5)

x = 3.5 * 1.6

x = 5.6km

Therefore the two town are 5.6km apart.