Answer:
1,200 kilometers (km)
Explanation:
The scale of a map = 1:30000000
There are two cities that are 4 cm apart on the map
First: Find the distance between them
Distance between them = 4 cm × 30,000,000 = 120,000,000 cm
Second: Convert
120,000,000 cm = 1,200 km
So distance between the cities is 1,200 km