Answer:
288
Explanation:
If the price of a children's ticket is 1/3 of an adult's, and we know that the price of a children's ticket = 40, than we also can calculate that the price of an adult ticket is 40 * 3 = 120
So the question boils down to how many adults and children. Well, Theon has a wife and 2 kids so we can safely assume that there are two adults and two children total (Theon and wife are adults) (2 children are children)
120*2 + 40 * 2 = 320
However, we need to eliminate 10% of the value since they get a discount
320 - 0.10 * 320 = 320 - 32 = $288