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    Question

    A started a business with an investment of Rs.1200.

    After some months, B joins the business with an investment of Rs.3600 and after two 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

    Solution

    Let B joined after ‘x’ months. => 1200 x 12 : (12 - x) x 3600 : 2800 x (12 – x – 2) => 1200 x 12 : (12 - x) x 3600 : 2800 x (10 – x) => 1200 x 12 = (12 - x) x 3600 => 12 – x = 4 => x = 8 C invested his money = 10 – x = 2 months

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