You can win a new car in a game show if you can put 4 balls in cups in the right order. The cups are lettered A, B, C, and D and
the balls are lettered the same. One ball goes in each cup but no goes in a cup with the same letter. You try ball C in cup A, D in B,A in C, and B in D and find none of these are correct The show's host gives you a hint that ball D does not go in cup A and ball A does not go in cup B.Which balls go in which cups?
