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    Question

    Ratio of income of A and B is 7:5 and the ratio of

    expenditure of A and B is 2:3. The savings of B is Rs.3500. If the expenditure of A gets double then the saving of A becomes Rs.5000. Find the income of B.
    A Rs.5600 Correct Answer Incorrect Answer
    B Rs.5000 Correct Answer Incorrect Answer
    C Rs.4000 Correct Answer Incorrect Answer
    D Rs.4200 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let the income of A and B be 7x and 5x respectively. And expenditure of A and B be 2y and 3y respectively. According to question, => 5x – 3y = 3500 ----- (i) And => 7x – 4y = 5000 ----- (ii) Solving (i) and (ii) we get, => x = 1000 and y = 500 Therefore the income of B = 5x = Rs.5000

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