The following are the ages (years) of 5 people in a room:
23, 20, 15, 12, 17
A person en...
Mathematics, 29.05.2020 07:59 pc103919
The following are the ages (years) of 5 people in a room:
23, 20, 15, 12, 17
A person enters the room.
The mean age of the 6 people is now 19.
What is the age of the person who entered the room?
Answers: 3
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