Average age of 12 persons in a group is 25 years. On including 3 more persons in the group, the average age is decreased by 1 year. Find the average age of the three now members.A19 yearsB20 yearsC23 yearsD24 years

The average age of 12 men in a group is increased by 2 years when two men whose ages are 20 years 22 years, are replaced by new members. What is the average age of the new men included?A32 yearsB33 yearsC35 yearsD66 years

The average age of 30 students of a class is 12 years. The average age of a group of 5 of the students is 10 years and that of another group of 5 of them is 14 years. What is the average age of the remaining students?

The average age of 36 students in a group is 14 years. When teacher's age is included to it, the average increases by one. Find out the teacher's age in years? Options : 51 49 47 none

Average age of 5 people is 42 years.Another group has 8 people who have average age of 81 years.When both groups are mixed what is average age of all people?64 years66 years61.5 years70 years

In a Yoga Class there were 12 members. Two members left the class and 4 new members joined. If the average age decreased by 4 years and the total age decreased by 2. What is the new average age of the class? (in years)