Drawing ten cards from 52 cards

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The discussion revolves around calculating the number of ways to draw ten cards from a standard deck, focusing on two specific cases. In the first case, drawing 7 clubs, 1 heart, and 2 diamonds yields 1,740,024 combinations. The second case, with 8 clubs, 1 heart, and 1 diamond, initially calculates to 217,503, but there is confusion regarding the correct answer of 117,117. Participants speculate that the discrepancy may relate to a card simulator's method or specific combinatorial factors. The conversation highlights the complexities of combinatorial calculations in card drawing scenarios.
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Hi there,
I am thinking a question from a book about drawing ten cards from 52 cards. The first case is drawing ten cards, having 7 cards of a club, 1 card of a heart, 2 cards of a diamond. The order doesn't matter, so the total number of possibilities is

C(13, 7)*C(13, 1)*C(13, 2) = 1740024

In the second case, if I need to draw ten cards, having 8 cards of a club, 1 card of a heart, 1 card of a diamond, so the total number of possibilities is

C(13, 8)*C(13, 1)*C(13, 1) = 217503

but I was told that for the second case, the answer should be 117117. Do you know how they get the number 117117 or in what case will this number come up?
 
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Your answer seems fine to me. One way of seeing where the answer may have come
from is by factoring it:

117117=7.9.11.132 , sometimes that helps reverse-engineer the answer.

BTW, I love the new snackers and the extra-crispy recipe. You're still doing it right.
 
Last edited:
Bacle said:
Your answer seems fine to me. One way of seeing where the answer may have come
from is by factoring it:

117117=7.9.11.132 , sometimes that helps reverse-engineer the answer.

BTW, I love the new snackers and the extra-crispy recipe. You're still doing it right.

Thank you for your hint. I was told by someone that though C(13, 8)*C(13, 1)*C(13, 1) is a right number, but 117117 may be used by some card simulator. I am thinking the 13*13 is the way to deal one heart and one diamond, but for the first three number 7, 9 and 11, I still confuse how this three numbers associate to deal cards of club.
 
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