New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    If the price of tea increases by 50%, what percent

    should the consumption be cut down to keep the spending constant?Answer should be rounded off to the nearest integer.
    A 33 % Correct Answer Incorrect Answer
    B 30 % Correct Answer Incorrect Answer
    C 27 % Correct Answer Incorrect Answer
    D 49 % Correct Answer Incorrect Answer

    Solution

    ATQ,

    Initial price = Rs. 100m, consumption = n

    Initial expenditure = 100mn

    New price = 150m

    New consumption = 100mn ÷ 150m = 100n ÷ 150

    Decrease = n - (100n ÷ 150) = 50n ÷ 150

    Required percent = (50n ÷ 150) ÷ n × 100 = 5000 ÷ 150 ≈ 33%

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