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The mean age of 5 people in a room is 27 years.
A person enters the room.
The mean age is now 35.
What is the age of the person who entered the room?

Respuesta :

mhanifa

Answer:

  • 75 years old

Step-by-step explanation:

The mean of 5 numbers is 27.

The sum of five is:

  • 5*27 = 135

Now there are 6 people with the mean age of 35 years.

The sum of six is:

  • 6*35 = 210

The difference of the sums is the age of the person entered the room:

  • 210 - 135 = 75

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