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    Question

    The monthly incomes of P and Q

    are in the ratio 3:4. P’s monthly expenditure is 25% less than that of Q. If P and Q save Rs. 9,450 and Rs. 12,600 per month, respectively, what is their average monthly income?
    A Rs.12000 Correct Answer Incorrect Answer
    B Rs.5000 Correct Answer Incorrect Answer
    C Rs.4000 Correct Answer Incorrect Answer
    D Can't be determined Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Let the monthly expenditure of 'Q' be Rs. ‘x’. So, the monthly expenditure of 'P' = Rs. 0.75x According to question: (x + 12600)/(0.75x + 9450) = 4/3 3x + 37800 = 3x + 37800 0 = 0 Here ‘x’ is eliminated. So, the desired answer can’t be determined

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