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The following are the ages (years) of 5 people in a room: 14 , 22 , 14 , 13 , 18 A person enters the room. The mean age of the 6 people is now 15. What is the age of the person who entered the room?
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2 votes
The following are the ages (years) of 5 people in a room:

14
,


22
,


14
,


13
,


18


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

User Guildner
by
4.1k points

1 Answer

3 votes
Sum of Age of first 5 people = 81
Sum of Age for 6 people = 15 x 6 = 90

Age of the 6th person who entered the room = 90 - 81 = 9
User Pavlo Strokov
by
3.4k points
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