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    Question

    A number is initially increased by 37.5% and then

    reduced by 40%. The final value obtained after these changes is 6,270. Determine 80% of the original number.
    A 6,240 Correct Answer Incorrect Answer
    B 5,720 Correct Answer Incorrect Answer
    C 6,120 Correct Answer Incorrect Answer
    D 6,080 Correct Answer Incorrect Answer

    Solution

    Let the required number be 'N'.

    So, N X 1.375 X 0.6 = 6,270

    Or, N X 0.825 = 6,270

    Or, 'N' = (6,270/0.825) = 7,600

    Therefore, required value = 0.8 X 7,600 = 6,080

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