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    Question

    'A' and 'B' started a business by investing Rs. '7x' and

    Rs. '5x' respectively. Nine months later, 'A' withdrew Rs. 600 from his investment whereas 'B' invested Rs. 300 more. If at the end of the year, profit share of 'A' was Rs. 12,000 out of total profit of Rs. 36,000, then find the initial investment of 'B'.
    A Rs.1,000 Correct Answer Incorrect Answer
    B Rs.1,500 Correct Answer Incorrect Answer
    C Rs.4,500 Correct Answer Incorrect Answer
    D Rs.4,800 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Ratio of profit shares of 'A' and 'B' at the end of the year = {(7x X 9) + (7x - 600) X 3} : {(5x X 9) + (5x + 300) X 3} = (63x + 21x - 1800) : (45x + 15x + 900) = (84x - 1800) : (60x + 900) Now, profit share of 'B' = 36000 - 12000 = Rs. 24,000 ATQ; [(84x - 1800) / (60x + 900)] = 12000 / 24000 So, investment of 'B' = 900 X 5 = Rs. 4,500

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