PLEASE HELP AND REAL ANSWERS A deck of cards contains 120 cards, 24 of each of five different colors. You shuffle the deck and deal the cards into 40 piles with 3 cards in each pile. Show that there will be at least two piles with the same distribution of colors.

Sanderson is having trouble with his assignment. his shown work is as follows: − 3 7 7 3 = − 3 7 × 7 3 = − 21 21 = −1 however, his answer does not match the answer that his teacher gives him. complete the description of sanderson's mistake. find the correct answer.