Question

There are 2 different maps of California. The scale on the first map is 1cm to 20km. The distance from Fresno to San Francisco is 15km. The scale on the second map is 1 cm to 100 km. What is the distance from Fresno to San Francisco on the second map?

Answer 1

75 km

Explanation:

Given the following :

Scale on first map = 1cm to 20 km

Distance fromFresno to San Francisco = 15km on first map

Scale on 2nd map = 1cm to 100 km

1cm / 20km = 15km

Let of Distance from Fresno to San Francisco on 2nd map = d

1cm / 100km = d

1 : 20 = 15

1 : 100 = d

20/ 100 = 15/d

1/5 = 15/d

d = 15 * 5

d = 75 km