The following are the ages (years) of 5 people in a room:
12, 19, 21, 19, 20
A person...
Mathematics, 29.03.2020 19:20 ronniethefun
The following are the ages (years) of 5 people in a room:
12, 19, 21, 19, 20
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: 1
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