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    Question

    Two successive discounts of 20% and 10% are equal to

    what single discount percentage?
    A 12% Correct Answer Incorrect Answer
    B 18% Correct Answer Incorrect Answer
    C 28% Correct Answer Incorrect Answer
    D 14% Correct Answer Incorrect Answer

    Solution

    ATQ,

    Single discount equivalent to two successive discounts of a% and b% = a + b - (ab/100) Required successive discount = 20 + 10 - (20 × 10)/100 = 28%

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