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Mathematics, 26.01.2020 17:31 gege158

Sharon called 3 friends on friday. on saturday, each of those 3 friends called 3 different friends. on sunday, each person who was called on saturday called 3 different people.

how many friends were called on sunday?

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Sharon called 3 friends on friday. on saturday, each of those 3 friends called 3 different friends....

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