Question

At the bank of a river, by measurement, a = 9 ft., b = 15 ft., c = 12 ft., and d = 7 ft. How long is x?

Answer 1

20 feet

Explanation:

a = 9 ft., b = 15 ft., c = 12 ft.

c/a = ?,? times b = x

12/9 = 1.3, 1.3(15)= 20

Answer 2

Explanation:

(x/12) = (15/9)

x = 12 (15/9)

x = 20