X women can finish a work in 2Y days. 1.5X men can finish that same work in Y days and 3X children can finish the same work in 2Y days. 8 Men, 8 Women and 8 children can finish a work in 45/2 days. 9 men can finish the same in Y + 20 days. How many children can finish the same work in Y days?
1
24
2
48
3
54
4
72