Mathematics, 11.04.2020 20:21 KArrington815

A bridge club at 22 members are the mean age of 68 then two members join one was 62 years old and then the other one was 80 years old how did the mean age change after they join

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A bridge club at 22 members are the mean age of 68 then two members join one was 62 years old and th...

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