Question

The following are the ages (years) of 5 people in a room: 12, 19, 24, 21, 21 A person enters the room. The mean age of the 6 people is now 25. What is the age of the person who entered the room

Answer 1

Answer:

53

Step-by-step explanation:

12+19+24+21+21+A = 6x25

A=150-97

A=53

Answer 2

Answer:

53

Step-by-step explanation:

mean=sum of all observation

total no of observation

25=12+19+24+21+21+A

6

25= 97+A

6

150= 97+A

150-97=A

53=A

so, age of 6th person is 53