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The mean age of 5 people in a room is 37 years.

A person enters the room.

The mean age is now 34.

What is the age of the person who entered the room?
please help me this is hard for me

Respuesta :

MrRoyal

The age of the person who entered the room is 19

How to determine what is the age of the person who entered the room?

The given parameters are:

  • The mean age of 5 people in a room = 37 years.
  • The mean age of now = 34 years.

Mean is calculated as:

Mean = Sum/Count

For the five people, we have

Sum/5 = 37

Multiply by 5

Sum = 185

For the five people, we have

Sum/6 = 34

Multiply by 6

Sum = 204

Let the last person be x

So, we have

x + 185 = 204

Subtract 185

x = 19

Hence, the age of the person who entered the room is 19

Read more about mean at:

https://brainly.com/question/20118982

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