Best Average Questions for Practice: Sainik School Entrance Exam 

Average Important
Question Sainik Institute Lucknow 08009022522

1.         Find
the average of following numbers 75, 64, 70, 66, 85, and 48

2.         Find
the average of the first 50 natural numbers.

3.         Find
the average of the squares of the first 10 numbers.

4.         If
12x + 12 y = 108, find the average of x and y.

5.         Average
of six numbers is 66. If five of the numbers be 54, 64, 75, 67 and 45, find
the 

sixth number.

6.         Average
expenditure of four days for a boy is Rs.63. If first day he spent Rs.110,
second the day he spent Rs.95, on the third day, he spent Rs.25. How much
did he spend on the fourth day?

7.         Average
of three numbers is 28. If the first number be the half of the second number
and The third number is the double of the second number. Find the third
number.

8.         Average
of five numbers is 27. If one of the numbers is removed,. The average
becomes 25 What is the value of the removed number?

9.         The
average of the height of five students having height 30, 40, 50, 60, 70.

10.       Average
cost of 10 pens is Rs.200 and Average cost of 10 pencils is Rs.100. Find
the 

average cost of all pens
and pencils.

11.       Of
the three numbers, second is twice the first and is also thrice the third. If
the average of three numbers be 44, find the smallest number.

12.       The
average age of a class of 39 students is included, then the average increases
by 3 

months. Find the age of
the teacher.

13.       The
average salary of workers of a factory is Rs.6000. The average salary of
15 

technicians
is Rs.12000 and that of non-technicians is Rs.3750. Find the total number
of workers in the factory.

14.       A
batsman makes a score of 87 runs in the 17th inning and thus increases his
average 

by 3. Find his average
after the 17th innings.

15.       Average
temperature on Sunday, Monday and Tuesday was 37° and that on Monday, 

Tuesday
and Wednesday were 39°. What was the temperature of Sunday, if on 

Wednesday it was 42°?

16.       The
average of 13 numbers is 40. If the average of first 7 numbers be 35, find the
7th 

number.

17.       The
average of A and B is 20, average of B and C is 19 and average of C and A is
21. 

Find the value of A.

18.       The
average of five consecutive numbers is 48. Find the largest number.

19.       Find
the average of the first 10 multiples of 4. 

20.       Find
the average of the first ten prime numbers.

21.       The
average of 12 numbers is 15. If each number is increased by 1, find the
new 

average.

22.       The
average of 24 numbers is 73. If each number is decreased by 4, what will be
the 

new average?

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