Question

Workers install 720 chairs at a constant rat. After 8 days, the workers still have to install 240 chairs. How much time does it take to install all of the chairs from start to finish?

Answer 1

720 - 240 = 480

480 ÷ 8 = 60

1 day = 60 chairs

? days = 720 chairs

12 days = 720 chairs