The following are the ages (years) of 5 people in a room:
17, 21, 15, 15, 25
A person enters...
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Mathematics, 18.01.2021 14:00 tioneetionee2188
The following are the ages (years) of 5 people in a room:
17, 21, 15, 15, 25
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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Answers: 3
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