The ratio of milk and water in container X is 7:5, and the ratio of milk and water in container Y is 3:4. The total amount of water in both containers X and Y together is 1240 liters, and the total amount of milk is 1320 liters. If 50% of the mixture from container X and 30% of the mixture from container Y are combined into container Z, what will be the ratio of milk to water in container Z?
1
47:41
2
45:49
3
48:49
4
47:46
5
44:49