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6 July, 17:32

A bridge club had 22 members with a mean age of 68. Then two new members joined. One was 62 years old, and the other was 80 years old. How did the mean age change after they joined?

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  1. 6 July, 17:47
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    Hello,

    (22*68+62+80) / 24=68.25 = = >68 years

    As age is a whole number, the mean age does not change.

    If we may calculate in months or days, the mean age is changed.
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