Question
A and B enter into partnership. A invests some money at
beginning, B invests thrice the amount after 7 months and C invests double the amount after 3 months. If the annual profit be Rs.30000, then find C’s share.Solution
Let A’s investment be Rs. x. Then, ratio of capitals of A, B and C = (x × 12) : (3x × 5) : (2x × 9) ⇒  12x : 15x : 18x ⇒  4x : 5x : 6x Therefore, C’s share = Rs. 30000 x (6/15) = Rs.12000
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