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

    Question

    A number undergoes a 35% increase, followed by a 20%

    decrease. What is the net percentage change in the original number?
    A 15% increase Correct Answer Incorrect Answer
    B 12% decrease Correct Answer Incorrect Answer
    C 10% increase Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let the number be '100b'

    Final number = 1.35 × 0.80 × 100b = '108b'

    Required percentage increase = [(108b - 100b) ÷ 100b] × 100 = 8%

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