Question

The length of a rectangular room is six times as long as the width. The perimeter is 84 yards. Find the width.

Answer 1

Let l be the length of the rectangular room and w its width. Then we have:

l = 6w

2l + 2w = 84

2*(6w) + 2w = 84

12w + 2w = 84

14w = 84

w = 84/14

w = 6 yards