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    Question

    A number is initially raised by

    45%, and afterward reduced by 20%. Calculate the net percentage change (whether increase or decrease) in the original number.
    A 16% decrease Correct Answer Incorrect Answer
    B 23% increase Correct Answer Incorrect Answer
    C 16% increase Correct Answer Incorrect Answer
    D 20% decrease Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the number be '100n' Final number = 1.45 × 0.8 × 100n = '116n' So, required percentage = [(116n - 100n) ÷ 100n] × 100 = 16% increase

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