Question

A ​20-inch board is to be cut into three pieces so that the second piece is 4 times as long as the first piece and the third piece is 5 times as long as the first piece. If x represents the length of the first​ piece, find the lengths of all three pieces.

Answer 1

2 in, 8 in, and 10 in

Explanation:

1) x

2) 4x

3) 5x

x + 4x + 5x = 20

10x = 20

x = 20/10

x = 2