4. A, B and C are partners sharing profits and losses in the ratio of 5:4:1. Calculate new profit-sharing ratio, sacrificing ratio and gaining ratio in each of the following cases:
Case-1 As per new agreement, C acquires 1/5th share from A
Case-2 As per new agreement, C acquires 1/5th share equally from A and B
Case-3 As per new agreement, A, B & C will share further profits and losses equally
Case-4 As per new agreement, C acquires 1/10th share of A and ½ share of B.