The mean age of 5 people in a room is 28 years.
A person enters the room.
The mean age i...
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Mathematics, 02.06.2020 01:57 Calmalemi
The mean age of 5 people in a room is 28 years.
A person enters the room.
The mean age is now 29.
What is the age of the person who entered the room?
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Answers: 2
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