Question

A 180 ft long board is cut into 3 pieces. The second piece of board is twice as long as the first. The third piece of board is six times as long as the first.

What is the length of the first piece of the board?
A. 20 ft
B. 40 ft
C. 60 ft
D. 120 ft

Answer 1

Explanation:

let the first piece=x ft

second piece=2 x ft.

third piece=6 x ft.

x+2x+6x=180

9 x=180

x=20

first piece=20 ft.