Question

The following are the ages (years) of 5 people in a room: 14, 22, 14, 13, 18 A person enters the room. The mean age of the 6 people is now 15. What is the age of the person who entered the room?

Answer 1

Step-by-step explanation:

mean =15

mean =14+22+14+13+18+A/6=15

81+A/6=15

81+A=15*6

81+A=90

A=90-81=9

therefore age of A is 9 years

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