Question
If the length of a rectangle is increased by 15% and its
breadth is decreased by 5%, then the area of the rectangle will be increased or decreased by how much percent?Solution
According to the question Percentage change in Area = x β y β xy/100 = 15 β 5 β 15 Γ 5/100 = 10 β 0.75 = 9.25% The area of the rectangle will be increased by 9.25%.
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