Question 72

If the length of a rectangle increases by 50% and the breadth decreases by 25%, then what will be the percent increase in its area?

Solution

Given, Increase in Length = 50%
Decrease in Breadth = 25%
Then, Overall Change in Area $$= 50-25-\dfrac{50\times25}{100} = 25-12.5 = 12.5$$%

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