A and B entered into partnership with capitals in the ratio 4 : 5

Explanation:
Let the capitals of A and B be 4x, 5x.
A’s withdrawal after three months =4x-414x
                                                     =4x-x
                                                     =3x
The capital left after 10 months=4x3+3x7
                                                  =33x

B’s withdrawal after three months =5x-515x
                                                     =5x-x
                                                     =4x
The capital left after 10 months=5x3+4x7
                                                  =43x

Thus A’s share in gain of Rs 760= Rs 7603376
                                                     = Rs 330.                 
Final Answer:
A’s share in the profit is Rs 330. Hence option A is the correct choice.