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    Question

    P started a business investing Rs.12000. After 3 months,

    Q joined her with the capital of Rs.18000. After another 6 months, R joined them with the capital of Rs.24000. At the end of the year, they made a total profit of Rs.4200. Find the share of R.
    A Rs.800 Correct Answer Incorrect Answer
    B Rs.2000 Correct Answer Incorrect Answer
    C Rs.1600 Correct Answer Incorrect Answer
    D Rs.1000 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    P invested her capital for 12 months, Q for 9 months and R for 3 months. So, ratio of their capitals = (12000 × 12):(18000 × 9):(24000 × 3) ⇒  144000 : 162000 : 72000 ⇒  8 : 9 : 4 Therefore, R’s share = 4200 x (4/21) = Rs.800

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