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  1. The ratio of the earnings of P and Q is 9 : 10. If the earnings of P increases by one-fourth and the earnings of Q decreases by one-fourth, then find the new ratio of their earnings?
    2. A.
    2 : 3
    B.
    3 : 2
    C.
    4 : 3
    D.
    3 : 4
    E.
    None of these

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    Answer : Option B

    Explanation :

    Let the earnings of P and Q be Rs. 9x and Rs. 10x respectively. 

    New ration = [9x + 1/4(9x)]/[10x - 1/4(10x)]

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