Mathematics, 24.05.2020 18:57, sg3635939

The mean age of 5 people in a room is 40 years.
A person enters the room.
The mean age is now 37.
What is the age of the person who entered the room?

Answers: 1

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The mean age of 5 people in a room is 40 years.
A person enters the room.
The mean age i...