Amap has a scale of 1 cm: 12km the distance between the two cities on the map is 6.8cm estimate the actual distance between the cities

The answer is 81.6 km.

This is simple proportion. If 1 cm on the map is 12 km of the actual distance, then 6.8 cm on the map are how many km of the actual distance:


Therefore, on the map with scale 1 cm : 12 km, if the distance on the map is 6.8 cm, then the actual distance between the cities is 81.6 km

The answer is 197^2 for this problem!