X, Y, and Z started a business with an investment in the proportion of 2 : 3 : 8. After 6 months, X had added more by investing half of his original amount to the initial investment, Y had also added more by investing the same amount, and Z had taken a 3/4th of his original investment. Find their profit ratio at the end of the year.
1
8 : 5 : 3
2
6 : 5 : 5
3
12 : 9 : 4
4
3 : 6 : 14
5
5 : 9 : 10