Q:

Jamal is playing a card game with his friends. The deck has red and black cards numbered 1-12. Red cards represent negative numbers, black cards represent positive numbers. If he needs a product of 24, what are the possible combinations of cards Jamal could use?

Accepted Solution

A:
First let us assume all black cards, the numbers that will result in 24 is: 2 * 12 3 * 8 4 * 6 Similar case with the red cards: -2 * -12 -3 * -8 -4 * -6 Assuming the product can be negative, so we can also take the combination of two cards (1 red and 1 black): 2 * -12 3 * -8 4 * -6 -2 * 12 -3 * 8 -4 * 6 Β  So there are a total of 12 combinations.