Question

The mean age and median age of 6 people in a room is 40 years. a person whose age is 30 years leaves the room.question 1. if possible, determine the mean age of the remaining 5 people in the room. if it is not possible to find the mean age of the remaining 5 people, write "not possible" (without the quotes) as your answer.question 2. if possible, determine the median age of the remaining 5 people in the room. if it is not possible to find the median age of the remaining 5 people, write "not possible" (without the quotes) as your answer.

Answer 1

1. Total age of people in the room
40 x 6 = 240
Total age after a person age 30 left the room
240 - 30 = 210
since there are 5 people left in the room,
210 ÷ 5 = 42
42 is the new mean.
2. Not possible

Answer 2

1. Mean of 6 is 40
Sum x ÷ 6 = 40
Sum x = (40×6) = 240
30 year old leaves, sum x = (240-30) = 210
Mean of 5 people = (210÷5) = 42
2. Not possible

Hope it helped!