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In the new budget, the price of kerosene oil rose by 25%. By how much per cent must a person reduce his consumption of kerosene oil so that his expenditure on it does not increase ?
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- 20%
- 25%
- 50%
- 40%
Correct Option: A
Using Rule 8,
Required reduction in consumption
| = | × 100% | 100 + x |
where x = 25
| = | × 100 = 20% | 100 + 25 |
