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Mathematics, 17.09.2019 21:40 datstepparoddoe27
Agroup of 67 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 66 others?
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Agroup of 67 friends meets for lunch. they greet each other by exchanging fist bumps. how many fist...
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