Question
P started a business investing Rs.20000. After 4 months,
Q joined her with the capital of Rs.25000. After another 6 months, R joined them with the capital of Rs.30000. At the end of the year, they made a total profit of Rs.7500. Find the share of R.Solution
P invested her capital for 12 months, Q for 8 months and R for 2 months. So, ratio of their capitals = (20000 × 12):(25000 × 8):(30000 × 2) ⇒ 240000 : 200000 : 60000 ⇒  12 : 10 : 3 Therefore, R’s share = 7500 x (3/25) = Rs.900
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