New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    What is the single discount equivalent to the successive

    discounts of 10%, 20%, and 15%?
    A 17% Correct Answer Incorrect Answer
    B 38.8% Correct Answer Incorrect Answer
    C 24% Correct Answer Incorrect Answer
    D 36% Correct Answer Incorrect Answer

    Solution

    Given - 10%, 20%, and 15% successive discount of the first two- =10+20-(10×20)/100 =30-2 =28% so now  28%and 15% =28+15 -(28×15)/100 =43-4.20 = 38.8%

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