# Aptitude Average and mixture questions and answer

1.What is the average of all the odd numbers between 40 and 90 ?

A) 65.5
B) 98
C) 130
D) 65

Explanation:

2.The average of 99 items is 27. if 3 is added to each number of the series, the new average is
A) 24
B) 27
C) 33
D) 30

Explanation:

3.The average of 18 numbers is 24. If each item of the series is multiplied by 3, the new average is :
A) 24
B) 27
C) 72
D) 8

Explanation:

4.The average of first 47 natural numbers is:
A) 23
B) 25
C) 24
D) 47

Explanation:

5.If the average of five consecutive numbers is 23, find the smallest number ?
A) 20
B) 21
C) 22
D) 25

Explanation:

6.If sum of three consecutive odd is 63, find the first term ?
A) 19
B) 21
C) 22
D) 23

Explanation:

7.Average of first seven multiples of 7 is :
A) 24
B) 27
C) 28
D) 18

Explanation:

8.Find the average of first eight multiples of 6 :
A) 18
B) 2
C) 27
D) 30

Explanation:

9.The average age of 40 students in a class is15 years. If the age of teacher is also include, the average becomes 16 years, find the age of the teacher ?
A) 15 years
B) 16 years
C) 55 years
D) 56 years

Explanation:

10.The average score of a player in 10 matches is 12. If in the 11th match his score is 34, what is the new average ?
A) 11
B) 12
C) 13
D) 14