Question

the length of a rectangle was increased by 30% while its width decreased by 15% determine 5he % change in the area of the rectangle ​

Answer 1

Answer:

Let length be X and breadth be Y

so area is XY

new length be 130X/100 =1.3X

new breadth be 85Y/100= 0.85Y

New area of rectangle is 1.105XY

so new area > original area

so change in new area = .105XY

Percentage = .105XY × 100/XY

=10.5%

Answer 2

Step-by-step explanation:

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