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16 March, 13:25

The following are the ages (years) of 5 people in a room: 12, 20, 22, 22, 23 A person enters the room. The mean age of the 6 people is now 23. What is the age of the person who entered the room?

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  1. 16 March, 13:39
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    39

    Step-by-step explanation:

    12+20+22+22+23=99

    new mean=23

    23*6=138

    138-99=39
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