Let x be the total capital invested
Given: 16 of the capital is invested by A
Hence A's investment is x6 for T6 of time.
Hence total value of A's investment for period T/6=xT/36
Given: 13 of the capital is invested by b.
Hence 'b's investment is x/3 for T/3 of time.
Hence, total value of b's investment for period T/3 will be Tx/9
Rest of the investment is done by c
Hence c's investment is x−x3−x6=x2 for period of T.
Hence total value of c's investment for period of T will be xT/2
profit should be divided in the total value of investment for period of T=(xT36+xT9+xT2)=23xT36
Hence, B's share should be xT9/23xT/36=423rd
Hence, profit received by B=423×4600=Rs. 800.