What is the average age of 30 boys in a class?

SOLUTION: The average age of 30 boys in a class is 15 years. One boy aged 20 years, left the class, but two new boys came in his place whose age differ by 5 years. If the average age of all.

What is the mean age calculator?

An online average age calculator to find the mean age of a group of people. Mean age refers to the average of ages of a different person. The mean age is used in statistical entry and to compare a group of people with another group of people with a different age group for various statistical reasons and governance reasons.

What is the average score of 10 students of a class?

The average score in an examination of 10 students of a class is 60. If the scores of the top five students are not considered, the average score of the remaining students falls by 5. The pass mark was 40 and the maximum mark was 100. It is also known that none of the students failed.

The average age of 30 boys in a class is 15 years. One boy, aged 20 years, left the class, but two new boys came in his place whose age differs by 5 years. If the average age of all the boys now in the class becomes 15 years, the age of the younger newcomer is:

What is the average age of the principal of a school?

The average age of 24 students and the principal is 15 years. When the principal’s age is excluded, the average age decreases by 1 year. What is the age of the principal?

What is the average age of a 20 year old student?

The average of 20 students is 12 years, if the teacher’s age is included, average increases by one. The age of the teacher is: Ajit has a certain average for 9 innings.

How do you find the age of a class teacher?

The average age of a class of 30 students and a teacher reduces by 0.5 years if we exclude the teacher. If the initial average is 14 years, find the age of the class teacher Ans . The teacher after fulfilling the average of 14 (for the group to which he belonged) is also able to give 0.5 years to the age of each of the 30 students.