In a school there are 5 classes. Class 1 has 45 students, class II has 38 students, class III has 42 students, class IV has 50 students and class V has 35 students. If new admission in class I and II are 9 and 16 respectively. Find the average number of students in each class for the new session.

Find the average of the first 200 natural numbers.

The average age of a family of 5 members is 38 years. After 3 years, the daughter left the family and a daughter-in-law joined the family. The new average age of the family is 39 years. What is the age difference between the daughter and daughter-in-law?

Among 12 numbers, average of the first 4 numbers is 25, average of the next 4 numbers is 30 and average of the last 4 numbers is 35. What is the average of all 12 numbers?

The average height of 4 boys is 160 cm. A boy of 139 cm height leaves the group. Find the new average height of the group

If the average of 6 cosecutive odd numbers is m , then what will be the average of the next 6 consecutive odd numbers?

Find the average of the first 100 even natural numbers.

Average age of a group is 28 years. A person aged 26 leaves the group and two persons of age 29 and 32 join the group. If the new average age of the group is 29, then how many members were in the group initialy?

In a class of 20 students, 15 got 16 pencils each and 5 students got 20 pencils each. Find the average number of pencils a student got.

A bike rider covers a distance of 80 km in 1 hour. He takes a 10 minutes break and again travels 40 km. If his average speed during the journey is 80 km/h, what is the speed in the second phase?

If a sum is to be divided between A, B, C and D in ratio 3 : 6 : 5 : 10. If average money B and D got is rupees 160, then find the total amount.

Among five numbers, average of the first three is 47 and average of the last three is 58. What is the difference between the sum of last two numbers and the sum of first two numbers?

In a multi team cricket tournament, the number of matches played by each team is 17. What is the number of teams participating and total number of matches played between them provided there will be only one match between two given teams?

The average age of a class of 25 students is 16. The average age of the class including a teacher is 18. What is the age of the teacher?

In a class, 80% students got 14 candies and 20% students got 16 candies. What is the average number of candies a student got?