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

Mathematics

Addyson Buck

7 April, 16:26

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?

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Answers (1)

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Sandra Atkins · 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%