Question
If the length of a rectangle is increased by 25% and its
breadth is decreased by 15%, 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 – y – xy/100 = 25 – 15 – 25 × 15/100 = 10 – 3.75 = 6.25% The area of the rectangle will be increased by 6.25%.
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