Question
Brendan has a rectangular paved area in his backyard. If the length and breadth were increased by the same percentage and the area increases by 21%, what is the percentage increase of the length and breadth?
Answers
scott
1.21 L W = x L * x W
1.21 = x^2 ... x = 1.1 ... a 10% increase
1.21 = x^2 ... x = 1.1 ... a 10% increase