Question

Six people are standing in line for concert tickets. Their average age is 27. The average age of the first four people in line is 23. The average age of the last three p pole is 34 how old is the fourth person in line?

Answer 1

To solve the age of the forth person, we should know that the average of the first 4 person is 23 and the last 3 person is 34 and the averge of the six is 27. So let x be the age of the 4th person

[(23*4) – x +( 34*3)] / 6 = 27

X = 32