The length of a rectangle is twice than that of its breadth. If the length of the rectangle is increased by 10%, while its breadth is decreased by 10% what is t

The length of a rectangle is twice than that of its breadth. If the length of the rectangle is increased by 10%, while its breadth is decreased by 10% what is the percentage change in the perimeter ?

The length of a rectangle is twice than that of its breadth. If the length of the rectangle is increased by 10%, while its breadth is decreased by 10% what is the percentage change in the perimeter ? ?

Created: 1 week ago | Updated: 1 week ago | Created By:

Imran Ahmed

3 1/3%

3 2/3%

No change

0 1

Best Answer Explained in Below-:

ধরি, breadth x unit length 2x unit Perimeter 2 ( 2x + x) unit = 6x unit 10% বৃদ্ধিতে , breadth ( x - 10x/100) = 9x/10 unit 10% বৃদ্ধিতে length ( 2x + 120x/100) = 11x/5 Perimeter 2 ( 9x/10 + 11x/5) unit = 2 ×31x/10 = 31x/5 Perimeter বৃদ্ধির হার ( 31x /5 - 6x / 6x × 100%) = 3 1/3 %

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