Mathematics, 13.12.2021 20:30, habsofarah0

The following are the ages (years) of 5 people in a room: 12 , 17 , 13 , 20 , 15 A person enters the room. The mean age of the 6 people is now 17. What is the age of the person who entered the room?

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The following are the ages (years) of 5 people in a room: 12 , 17 , 13 , 20 , 15 A person enters the...