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A group of 66 friends meets for lunch. They greet each other by exchanging fist bumps. How many fist bumps are exchanged if each friend must bump with each of the 65 ​others?

A group of 66 friends meets for lunch. They greet each other by exchanging fist bumps. How many fist bumps are exchanged if each friend must bump with each of the 65 ​others?
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A group of 66 friends meets for lunch. They greet each other by exchanging fist bumps. How many fist bumps are exchanged if each friend must bump with each of the 65 ​others?

User Jacob R
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9.2k points

1 Answer

5 votes
I'm pretty sure it's 66
User Jithesh Jose
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8.1k points
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