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    Question

    A number is first increased by 30% and then decreased by

    20%. Find the percentage increase or decrease in the original number.
    A 2% Correct Answer Incorrect Answer
    B 4% Correct Answer Incorrect Answer
    C 5% Correct Answer Incorrect Answer
    D 10% Correct Answer Incorrect Answer

    Solution

    ATQ, Let the original number be 100n Final number = 1.3 ├Ч 0.8 ├Ч 100n = 104n Therefore, percentage increase = [(104n тИТ 100n) ├╖ 100n] ├Ч 100 = 4%

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