A and B began business with Rs.3000 and Rs.4000 after 8 months, A withdraws Rs.1000 and B advances Rs.1000 more. At the end of the year, their profits amounted to Rs.630 find the share of A.

A. Rs.240
B. Rs.350
C. Rs.340
D. Rs.390

Explanation:

(3*8 + 2*4):(4*8 + 5*4)

8:13

8/21 * 630 = 240