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Q:

If the price of petrol is reduced by 10%, by how much should a consumer increase the consumption of petrol so that his expenditure on petrol does not decrease?

  • 1
    $$11{1\over9}\% $$
  • 2
    $$12{1\over3}\% $$
  • 3
    $$10{1\over9}\% $$
  • 4
    14%
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Answer : 1. "$$11{1\over9}\% $$"

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