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The mean age of 5 people in a room is 39 years. A person enters the room. The mean age is now 40. What is the age of the person who entered the room?
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The mean age of 5 people in a room is 39 years.

A person enters the room.
The mean age is now 40.
What is the age of the person who entered the room?

User JT Nolan
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1 Answer

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Answer: Answer:the person entering the room is 10 years oldStep-by-step explanation:x / 5 = 40x = 40 * 5x = 200so the total of all the ages of 5 people

Explanation:

User Bobek
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