Mathematics, 17.06.2020 12:57 dailanniiii
The following are the ages (years) of 5 people in a room: 23, 19, 12, 21, 13 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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The following are the ages (years) of 5 people in a room: 23, 19, 12, 21, 13 A person enters the roo...
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