The length of a rectangle is decreased by r%, and the breadth is increased by (r – OfficerPath

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MCQ Practice

The length of a rectangle is decreased by r%, and the breadth is increased by (r + 5)%. Find r, if the area of the rectangle is unaltered :

Subject: MathematicsTopic: Areas

A

5

B

10

C

15

D

20

Correct Answer: D

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