A designer had to change the size of a rectangular carpet. He increased the length by 50% and decreased the width by 20%. By what percent was the area of the final item changed?

Question

Andy Mays

Mathematics

29 November, 16:46

A designer had to change the size of a rectangular carpet. He increased the length by 50% and decreased the width by 20%. By what percent was the area of the final item changed?

+1

Answers (1)

Know the Answer?

Aryn · Answer 1

It increased by 20%

Step-by-step explanation:

imagine the original size as 10 by 10.

an increase of 50% equals to 15 and a decrease of 20% equals to 80

compare the original area (100) with the new area (120)

the area has increased by 20/100, or 20%