4 01 8 The following are the ages (years) of 5 people in a room:
22, 21, 23, 24, 17
A person enters the room.
The mean age of the 6 people is now 23.
What is the age of the person who entered the room?
years
Marhs

13 years

Step-by-step explanation:

17 + 15 + 23 + 23 + 23 =101 / 5 = 20.2

Mean before was 20.2

In order for the mean to be 19, all those numbers would have to add up 114 to be divided by 6 and have a mean of 19

114 / 6 = 19

114-101 = 13 is that number

17 + 15 + 23 + 23 + 23 + 13 = 114 / 6 = 19

31

Step-by-step explanation:

6×23=138 this will be the total ages for the six people

22+21+23+24+17=107 total ages for the five people

138-107=31

31 is the age of the person who entered the room

answer: 1, 3 and 5 are correct

step-by-step explanation:

this answer is !