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    Question

    A quantity is increased by 15% and then again increased

    by 10%. What is the net percentage increase?
    A 32.5% Correct Answer Incorrect Answer
    B 42.5% Correct Answer Incorrect Answer
    C 26.5% Correct Answer Incorrect Answer
    D 18.8% Correct Answer Incorrect Answer

    Solution

    Let original value = 100 After 15% increase: Value₁ = 100 + 15 = 115 After further 10% increase: Value₂ = 115 + 10% of 115 = 115 + 11.5 = 126.5 Net increase = 126.5 − 100 = 26.5 Net percentage increase = 26.5%

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