Find the average of 100, 150, 200, 250.

Find the average of 50, 60, 70.

Find the average of 7, 14, 21, 28, 35.

Find the average of 8, 16, 24, 32, 40.

Find the average of 9, 18, 27.

Find the average of 22, 28, 34, 40.

The average of 5 numbers is 20. A new number 32 is added. Find the new average.

Find the average of 5, 10, 15, 20.

The average of 8 numbers is 15. A new number 24 is added. Find the new average.

Find the average of 12, 18, 24, 30, 36.

The average of 10 numbers is 25. A new number 47 is added. Find the new average.