Question

A 30 meter wire is cut into three pieces. the shortest piece is half in length of the second piece and the longest part is three times as long as the shortest piece. how long is the longest piece of wire?

Answer 1

1st piece=x
then 2nd piece=2x & 3rd piece=3x
x+2x+3x=30
6x=30
x=5
longest piece=15m