Question

A plumber had two pipes. The ratio of the length of the longer pipe to the shorter pipe was 9 : 2. When he cut 1.65 m from the longer pipe, the remaining length was 3 times that of the shorter pipe. Find the length of the shorter pipe in metres.

Answer 1

Step-by-step explanation:

Let

x be the length of the longer pipe and

y be the length of the shorter pipe

the given ratio means

so,

when he cut 1.65 meter from the longer pipe the remaining length was 3 times that of the shorter pipe, it means

substitute x

multiply by 2 we obtain

hence, y = 1.1, so the length of the shorter pipe is 1.1 meter