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12 June, 04:41

The following are the ages (years) of 5 people in a room: 12, 19, 24, 21, 21 A person enters the room. The mean age of the 6 people is now 25. What is the age of the person who entered the room?

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  1. 12 June, 04:43
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    53

    Step-by-step explanation:

    x - the age of the person who entered the room.

    (12 + 19 + 24 + 21 + 21 + x) / 6 = 25

    12 + 19 + 24 + 21 + 21 + x = 150

    97 + x = 150

    x = 53
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