Arithmetic (Average) Questions and Answers

The average of first five prime numbers is :

The average of first five mumtiples of 3 is :

The average of first 50 natural numbers is :

The average of all odd numbers upto 100 is :

If a,b,c,d, e are five consecutive odd numbers, their average is :

The average of 7 consecutive numbers is 33. The largest of these numbers is :

The average height of 30 boys out of a  class of 50,  is 160 cm. If the average height of the remaining boys is 165 cm, the average height of the whole class (in cm) is :

There are three sections of a class in a school. The number of students in the three sections is 38.32 and 40 and the average age  of the students in these sections separately is 15.3 years, 16.5 years and 15.9 years respectively. What is the average age of the class ?

The average of three numberf is 20. If two numbers are 16 and 22,  the third is :

The average of three number is 20. If two numbers are 16 and 22, the number is :