A plumber needs 3 times as much solid pipe as perforated pipe to lay a drain line 200 feet long. How much solid pipe is needed?

Answer 1

in a 3:1 ratio, there are 4 parts. So, 200/4 = 50

The solid pipe will be 3*50 = 150

Perforated pipe will be 1*50 = 50

3 x 50 = 150 !