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Please solve question below. Thank you.
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megan190

by megan190 at August 12, 2010

In a singles tennis tournament there are 10 players. Thr organiser needs to arrange these 10 players into 5 pairs for the first round. In how many ways can this first round be drawn up?

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Why ask it 3 times??? Anyway, I think the answer is 64 because you have 4 pairs of socks and have different colors. Hope this helps!
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ChromeRedCat ChromeRedCat September 07, 2010

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No wait, forget the other answer. Didn't read the description. Answer is 20.
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ChromeRedCat ChromeRedCat September 07, 2010

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