X and Y are partners, sharing profits and losses in the ratio of 4 ∶ 3. They admit Z into the partnership for \(\frac{1}{5}\)th share. X and Y decide to share future profits in the ratio of 2 ∶ 1. What is the sacrificing ratio of X and Y?
1
4 ∶ 3
2
13 ∶ 8
3
8 ∶ 13
4
4 ∶ 17