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

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asked Dec 11, 2022 184k views

22 votes

The following are the ages (years) of 5 people in a room:

13, 12, 13, 15, 12
A person enters the room.
The mean age of the 6 people is now 20.
What is the age of the person who entered the room?

Mathematics
high-school

Hwjp asked

by Hwjp

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1 Answer

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the person who entered the room would be 55 years old.

Saugat Mukherjee answered Dec 18, 2022

by Saugat Mukherjee

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