Question : The average age of 24 students is 12 years. It was observed that while calculating the average age, the age of a student was taken as 14 years instead of 8 years. What will be the correct average age (in years)?

Question : The average age of 5 children in a family is 15 years. The average age of children together with their father and mother is 25 years. If the father is older than the mother by 4 years, then find the age of the mother (in years).

Question : The average age of P, Q, and R is 5 years more than R's age. If the total ages of P and Q together is 39 years, then R's age is:

Question : In a company, average age of female employees is 24 years. The average age of all the employees is 32 years. If the number of males and females is the same, what will be the average age of male employees?

Question : The average age of 14 friends is 14 years. If the age of $15^{\text {th }}$ friend is added, then the average remains the same. What is the age of the $15^{\text {th }}$ friend?