Question : If the price is decreased by 25%, then by how much percentage of consumption should be increased, so that the expenditure remains the same?
Option 1: 20%
Option 2: 40%
Option 3: 37.5%
Option 4: 33.33%
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Correct Answer: 33.33%
Solution : Let the price be INR 100. If the price decreases by 25%, then the decreased price = 75% of 100 = INR 75 Increase needed = 100 – 75 = 25 Required percentage = $\frac{25}{75}$ × 100 = 33.33% Hence, the correct answer is 33.33%.
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