The average age of a class of 39 students is 15 years. If the age of the teacher be included, then the average increases by 3 months. Find the age of the teacher.

The average age of a batch of 19 members is 24 years. If the age of the faculty be included, then the average increased by 4 months. What is the age of the faculty? A 35 years B 30 years 8 months C 37 years 4 months D. 32 years 8 months

Given below are two quantities named I and II. Based on the given information, you have to determine the relation between the two quantities. You should use the given data and your knowledge of Mathematics to choose among the possible answers. Quantity I: The average age of a group of students is 24 years. When the age of their teacher is also included, the average age increases by 1 year. If the age of the teacher is 36 years, find the number of students in the group. Quantity II: 11

The average age of 27 students of a class is 22. If the age of the teacher is also added to their ages, then the average increases by one. Find the age of the teacher

The average age of 12 players is 25 years. If the age of thecaptain be included, then the average age increases by 1years. Find the age of Captain

The average age of a class of 35 students is 15 years. If the teacher's age is also included the average age Increases by one year. Furthermore, if the average age of the teacher's family having a wife and a son is 40 years and the son's age in 80% less than his-mother's age, then the age of the teacher's wife is