Question

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

14,16,16,13,23
A person enters the room.
The mean age of the 6 people is now 21.
What is the age of the person who entered the room?

Answer 1

44

Explanation:

mean = (13+15+12+16+14+X)/6 = 19

70+X=19×6

X=114-70=44