X, Y & Z were partners sharing profits and losses in the ratio of 4:3:1. Y retires and gives his share of profit to X for ₹3,500 and to Z for ₹2,100. What will be the gaining ratio of X and Z?

5:3

The correct answer is option 2- 5:3.

Y share = 3/8
He gives (3,500 + 2,100) i.e. 5,600 for 3/8th share.
Gaining ratio will be = 3,500/2,100 = 5/3 or 5:3