Mathematics, 12.02.2021 14:10 carlydays4403

The following are the ages (years) of 5 people in a room: 13, 12, 13, 15, 12
A person enters the room.
The mean age of the 6 people is now 20.
What is the age of the person who entered the room?

Answers: 1

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The following are the ages (years) of 5 people in a room: 13, 12, 13, 15, 12
A person enters t...