A 180-m wire is cut into three pieces. The third piece is 20 m longer than the first. The second is two thirds as long as the first. How long is each piece?

Answer 1

x = first piece

x + x + 20 + (2/3)x = 180

2 2/3x = 160

x = 160/(8/3)

x = 160 * (3/8)

x = 60