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    Question

    A number is first increased by 55%, and then decreased

    by 35%. What is the net percentage change in the original number?
    A 5.5% increase Correct Answer Incorrect Answer
    B 2.50% decrease Correct Answer Incorrect Answer
    C 0.75% increase Correct Answer Incorrect Answer
    D 7.92% decrease Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the number be '100b'

    Final number = 1.55 ├Ч 0.65 ├Ч 100b = '100.75b'

    Required percentage increase = [(100.75b - 100b) ├╖ 100b] ├Ч 100 = 0.75%

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