A and B share profits in the ratio 6:7. C is given 4/13 of the profits, and the remaining profit is shared between A and B in their old ratio. What will be the new profit-sharing ratio?

Correct answer: 54:63:52

C’s share is 4/13, so the remaining share for A and B is 1 − 4/13 = 9/13. Distributing this remainder in the old ratio 6:7 gives A’s share as (9/13) × (6/13) = 54/169 and B’s share as (9/13) × (7/13) = 63/169. C’s share, 4/13, equals 52/169. Therefore, the new ratio is 54:63:52. Exam tip: When the incoming partner’s share is given and the remainder is divided in the old ratio, multiply the remainder by each old partner’s fractional share.