A and B started a partnership business investing some amount in the ratio of 3 : 5. C joined them after six months with an amount equal to that of B. In what proportion should the profit at the end of one year be distributed amount A, B and C	Choose the correct answer:
A) 3:7:5 B) 6:10:5 C) 6:10:7 D) 6:7:5 E) None of these
Explanation:   Let initial investment of A is 3x and B is 5x, then C investment is also 5x, but most important to note in this question is the time duration of investment   Like, A invested for 12 months, B invested for 12 months and C invested for 6 months.   A:6:10:5:C =(3x*12):(5x*12):(5x*6)   = 36:60:30   = 6:10:5   Option 6:10:5
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A and B started a partnership business investing some amount in the ratio of 3 : 5. C joined them after six months with an amount equal to that of B. In what proportion should the profit at the end of one year be distributed amount A, B and C