The following are the ages (years) of 5 people in a room:
23, 18, 15, 16, 13
A person enters...
Mathematics, 23.02.2021 14:00 lilkobe6982
The following are the ages (years) of 5 people in a room:
23, 18, 15, 16, 13
A person enters the room.
The mean age of the 6 people is now 18.
What is the age of the person who entered the room?
Answers: 3
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