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## The following are the ages (years) of 5 people in a room: 17, 16, 15, 17, 22 A person enters the room. The mean age of

Question

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

17, 16, 15, 17, 22

A person enters the room.

The mean age of the 6 people is now 17.

What is the age of the person who entered the room

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Mathematics
3 months
2021-08-13T19:41:41+00:00
2021-08-13T19:41:41+00:00 1 Answers
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## Answers ( )

Answer:The age of the person who entered the room is

15Step-by-step explanation:We are given:

Ages of 5 people in a room are:

17, 16, 15, 17, 22

A person enters room, and then the mean age of 6 people is 17.

We need to find the age of person who entered the room.

The formula to calculate mean is:

Now, in question we are given mean of 6 people that is 17

The age of 5 people are given while age of one person who enters the room is unknown.

Let age of person whose age is unknown= x

Now finding x using mean formula

So, The value of x:

x=15Hence, the age of the person who entered the room is

15