If we don't care about order, how many combinations are there if we have 5 things and take 3 of them?
Answer
10
If we don't care about order, how many combinations are there if we have 7 things and take 2 of them?
21
If we don't care about order, how many combinations are there if we have 10 things and take 7 of them?
120
Find the combination: .
126
55
1
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