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If the length of a rectangle is increased by 40%, and the breadth is decreased by 20%,then the area of the rectangle increases by x%. Then the value of x is: |
20 8 16 12 |
12 |
In this type of question we use this method, Area increased by = 40 - 20 - \(\frac{(40 × 20)}{100}\) = 20 - 8 = 12% |
