A, B and C enter into a partnership with a capital in which A’s contribution is Rs. 10,000. If out of a total profit of Rs. 1000, A gets Rs.500 and B gets Rs. 300, then C’s capital is:

A. Rs. 4000
C. Rs. 6000
B. Rs. 5000
D. Rs. 9000

Explanation :

A : B : C = 500 : 300 : 200
              = 5 : 3 : 2.
Let their capitals be 5x, 3x, 2x respectively.
Then, 5x = 10000          
          x  = 2000.   
C's capital = 2x
                 = Rs. 4000.