A and B started a business by investing Rs.4000 and Rs.3000 respectively. After 6 months C joined them by investing Rs.4000. At the end of two years they have earned a profit of Rs.4000, then the share of C in the profit is?
Profit of A : Profit of B : Profit of C = 4000× 24 : 3000× 24 : 4000× 18
= 4 : 3 : 3
C's share of the profit = 310× 4000