A map has a scale of 2cm = 5km. The distance between two cities on the map is 31.2cm. what is the actual distance between the cities

78 km

Step-by-step explanation:

the statement tell us:

2cm = 5km.

so we need to find 31.2cm in the given scale (km)

we multiply 31.2cm by 5km

and divide the result by 2cm

as follows

31.2cm*5km=156cm*km

156cm*km/2cm=78km

finally the answer is 78 km