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. 125
B. Rs. 354
C. Rs. 75
D. Rs. 240

The ratio of A & B investments = (3×8 + 2×4):(4×8 + 5×4)
=> 8:13
=> 8/21 x 630 = 240.