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    Question

    Person 'M' invests Rs. 'a' in a business, while person

    'N' contributes Rs. (a + 600). After a duration of 2 years, M's profit is 1/3 less than N's profit. Determine the value of 'a'.
    A 428 Correct Answer Incorrect Answer
    B 1200 Correct Answer Incorrect Answer
    C 184 Correct Answer Incorrect Answer
    D 750 Correct Answer Incorrect Answer

    Solution

    ATQ;
    If both invest for the same period, profit ∝ investment
    M's profit is 1/3 less than N's
    M : N = (2/3) : 1 = 2 : 3
    Hence, a : (a + 600) = 2 : 3
    3a = 2(a + 600)
    3a = 2a + 1200
    a = 1200

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