Question
If the length of a rectangle is increased by 10% 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 – y – xy/100 = 10 – 5 – 10 × 5/100 = 5 – 0.5 = 4.5% The area of the rectangle will be increased by 4.5%.
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