They agree that everyone should have one of the first four rides all alone.
But the following conditions apply:
1. If D is allowed to get on the first trip, C would have the third trip.
2. If A or D take the second trip, C would have the first trip.
3. If and only if A receives the third trip, B want to have the second trip.
4. Will D get the third trip, A wants the second trip.
5. Will D get the last trip would C have the third and A the first.
In what possible order can they take the first four trips so that all is happy?
Motivate your answer.
Good luck,folks!!
