Question

    Instead of increasing the number

    first by 20% and then by 25%, it is reduced by 10%. What percentage does the final value represent of the correct desired value?
    A 60% Correct Answer Incorrect Answer
    B 55% Correct Answer Incorrect Answer
    C 25% Correct Answer Incorrect Answer
    D 57% Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the number be '100a'. Increased number = 100a × 1.2 × 1.25 = 150a Decreased number = 100a × 0.9 = 90a Required percentage = (90a/150a)×100 = 60%

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