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A group of 50 friends meet for lunch. How many fist bumps are exchanged if each friend must fist bump with each of the 49 others
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A group of 50 friends meet for lunch. How many fist bumps are exchanged if each friend must fist bump with each of the 49 others

User Flaviussn
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If each of the 50 fist bump 499


User Andrejs
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