A and B started a partnership business investing some amount in the ratio of 5 : 6. C joined then after 6 months with an amount equal to $$\frac{2}{3^{rd}}$$ of B. What was their profit (in Rs) at the end of the year if C got Rs 21,600 as his share?

A

46800

B

56160

C

70200

D

1,40,400