On the map with a scale of 300000 / 1, the distance between a and B is 14 cm, and the actual distance between a and B is () km

On the map with a scale of 300000 / 1, the distance between a and B is 14 cm, and the actual distance between a and B is () km

First of all, I'm glad to answer the questions for you
Tips;
14 * 300000 = 4200000 cm
4200000 cm = 42 km
On the map with a scale of 300000 / 1, the distance between a and B is 14 cm, and the actual distance between a and B is (42) km
Absolutely right,