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Mathematics, 08.06.2020 10:57 preservations
The following are the ages (years) of 5 people in a room: 23, 15, 17,23, 23 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?
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The following are the ages (years) of 5 people in a room: 23, 15, 17,23, 23 A person enters the room...
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