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    Question

    If the price of petrol rises by 20%, what percentage

    reduction in consumption is required to keep the expenditure unchanged?
    A 15% Correct Answer Incorrect Answer
    B 20% Correct Answer Incorrect Answer
    C 25% Correct Answer Incorrect Answer
    D (50/3)% Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let initial price = Rs. 100 Increased price = 100 × 120% = Rs. 120 Difference = 120 – 100 = Rs. 20 Required percentage =20/120 × 100 = (50/3)%

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