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    Question

    What number should be subtracted from both 36 and 28 so

    that the resulting numbers are in the ratio of 7:5?
    A 12 Correct Answer Incorrect Answer
    B 6 Correct Answer Incorrect Answer
    C 10 Correct Answer Incorrect Answer
    D 8 Correct Answer Incorrect Answer

    Solution

    Let the required number be 'y'.

    ATQ, (36 - y) :(28 - y) = 7:5

    Or, 5 X (36 - y) = 7 X (28 - y)

    Or, 180 - 5y = 196 - 7y

    Or, 2y = 16

    So, 'y' = 8

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