A and B invested in a business in ration 7 6 After 7 months C joined them with double the investment...........

Quantitative Aptitude ( CCS) Partnership

A and B invested in a business in ration 7 : 6. After 7 months, C joined them with double the investment made by B. If A and C together got Rs 2380 from the total profit after a year, what was the annual profit?

Rs 3430

Rs 2880

Rs 2920

Rs 3570

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Explanation:

Solution:
Investment of A = 7x, B = 6x. So that of C = 2*6x = 12x
So ratio of A : B : C is
7x*12 : 6x*12 : 12x*5
7 : 6 : 5
Let annual profit = Rs x. So
(7+5)/(7+6+5) * x = 2380
So x = Rs 3570