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  9. Q38

CGPSC 2012 · Question 38 of 66

Q43. If the price of petrol is increased by 20%, by what percentage should the consumption be decreased by the consumer if the expenditure on petrol remains unchanged?

Basic Numeracy

  1. A16 2/3%Correct
  2. B6 2/3%
  3. C8%
  4. D15%
  5. ENone of these

Answer: A. 16 2/3%

Explanation

New consumption = 1/1.2 = 5/6 of the original, so consumption must fall by 1/6 = 16 2/3%.

Source: CGPSC Prelims 2012 GS Paper-II (held 9-6-2013), solved paper

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