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The area of a rectangle is increased 43%. If the length of the rectangle is increased by 10% find the change in its breadth.

The area of a rectangle is increased 43%. If the length of the rectangle is increased by 10% find the change in its breadth. Correct Answer 30%

Let the initial length and breadth of the rectangle be 10 and 10, respectively. The initial area of the square = 100 The changed area of the square = 100 + 43% of 100 = 100 + 43 = 143 The changed length of the rectangle = 10 + 10% of 10 = 10 + 1 = 11 Let the changed breadth of the square be x. 11 * x = 143 X = 143 / 11 = 13 Changed breadth = 13 Initial breadth = 10 Change = 3 Percentage change = 3 / 10 * 100 = 30%

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