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    Question

    A started a business with an investment of Rs.1000.

    After some months, B joins the business with an investment of Rs.2000 and after three more months C joins the business with Rs.2800. If the annual profit share of A and B is equal, then find for how many months C invested his money?
    A 2 Correct Answer Incorrect Answer
    B 3 Correct Answer Incorrect Answer
    C 4 Correct Answer Incorrect Answer
    D 5 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Let B joined after ‘x’ months. => 1000 x 12 : (12 - x) x 2000 : 2800 x (12 – x – 3) => 1000 x 12 : (12 - x) x 2000 : 2800 x (9 – x) => 1000 x 12 = (12 - x) x 2000 => 12 – x = 6 => x = 6 C invested his money = 9 – x = 3 months

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