Question

A rectangular kitchen is 4 meters longer than it is wide. If the area of the kitchen is 192 square feet meters, how many meters long is it.

Answer 1

width = w

length = w+4

area = l x w = w*w+4

192 = w^2 + 4w

w^2 +4w - 192 = 0

(w+16) (w-12)

w = 12

length = 12+4 = 16

answer is J