Question

A plumber has a 2.5 meter long copper pipe. He needs to cut lengths of 60cm,35cm and 90cmWork out how much of the initial 2.5 meter long pipe is left.Give answer in cm

Answer 1

65 cm

Explanation:

Remember that

`1\ m=100\ cm`

step 1

Convert 2.5 m to cm

`2.5\ m=2.5(100)=250\ cm`

step 2

To find out how much of the initial long pipe is left, subtract the lengths of 60 cm, 35 cm and 90 cm from the initial long pipe

`250-(60+35+90)=250-185=65\ cm`