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There are 7 people on a cycling team. Their coach mush pick two of them to be Co - Captain. How many different pairs can the couch choose?
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There are 7 people on a cycling team. Their coach mush pick two of them to be Co - Captain. How many different pairs can the couch choose?

User Caroleann
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1 Answer

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21, because 7 choose 2 = 21
User Jitinsharma
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