Kareem has 216 role-playing game cards.His goal is to collect all 15 sets of cards.There are 72 cards in a set.How many more cards does Kareem need to reach his goal?

Answer 1

Assuming that a given set of cards contains 72 unique cards, none of which any other different set contains, then he currently owns 216/72 or 3 sets. Thus he would need to collect 15-3 or 12 more sets which would be an additional 12*72 or 864 cards.