Question

You are interested vacationing in Japan and want to know approximately how far south africa from Japan.You make a quick measurement on the map in figure 12 and note that these two countries are about 7cm apart.Use the ratio scale that You calculated for questions 16 to determine the real distance in km between two countries

Answer 1

Assume the scale ratio in question 16 was x:y. Then the real distance in km between two countries is

$$D=7·\frac{y}{100000x}\text{ km}.$$