Mathematics, 11.07.2021 20:50 hanz73
The mean age of 5 people in a room is 40 years. A person enters the room. The mean age is now 39. What is the age of the person who entered the room?
Answers: 3
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The mean age of 5 people in a room is 40 years. A person enters the room. The mean age is now 39. Wh...
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