The following are the ages (years) of 5 people in a room:
20, 21, 13, 22, 18
A person en...
Mathematics, 05.05.2020 10:27 demotte79991
The following are the ages (years) of 5 people in a room:
20, 21, 13, 22, 18
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: 2
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