SOLUTION: Billy has 41 baseball cards, and Scottie has 37. How many ways can Billy trade 2 of his cards for 2 of Scottie's cards

SOLUTION: Billy has 41 baseball cards, and Scottie has 37. How many ways can Billy trade 2 of his cards for 2 of Scottie's cards

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Question 787103: Billy has 41 baseball cards, and Scottie has 37. How many ways can Billy trade 2 of his cards for 2 of Scottie's cards
Answer by xinxin(76) (Show Source): You can put this solution on YOUR website!
In this problem the order of picking 2 cards does not matter, therefore you should use combination formula:
C ( 41,2) * C (37,2) = 546120
There are 546120 ways that Billy can trade 2 of his cards for 2 of Scottie's cards.
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