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Important questions about Average. Average MCQ questions with answers. Average exam questions and answers for students and interviews.

1. The average of 10 number is calculate as 15. It is discovered later on that while calculating the average one number , namely 36 was wrongly read as 26. The correct average is?

Options

A : 12.4

B : 14

C : 16

D : 18.6

2. The average of 13 result is 68. The average of first seven is 63 and that of the last seven is 70 , the seventh result is?

Options

A : 47

B : 65.5

C : 73.5

D : 94

3. The average of 25 results is 18, that of first twelve is 14 and of last twelve is 17 . Thirteenth result is?

Options

A : 28

B : 72

C : 78

D : 85

4. The average temperature of Monday, Tuesday, Wednesday, and Thursday was 38° C and that of Tuesday, Wednesday, Thursday and Friday was 40° C, if the temperature on Monday was 30° C, the temperature of Friday was?

Options

A : 40°

B : 39°

C : 38°

D : 30°

5. The average of 5 consecutive number is n , if the next two number are also include, the average of 7 number will?

Options

A : Increase by 2

B : increase by 1

C : Remains the same

D : Increase by 1.4

6. A man whose bowling average is 12.4 takes 5 wicket for 26 runs and thereby decreases his average by 0.4. The number of wickets taken by him, before his last match is?

Options

A : 85

B : 78

C : 72

D : 64

7. There were 35 students in a hostel. If the number of students increased by 7, the expenses of the mess were increase by Rs 42 per Day , while the average expenditure per head diminished by Re. 1 The original expenditure of the mess was?

Options

A : Rs. 40

B : Rs . 420

C : Rs . 432

D : Rs . 442

8. The average age of a husband and a wife was 23 year when they were married 5 year ago. The average age of the husband, the wife and child, who was born during the interval is 20 years now . How old is the child now?

Options

A : less then 1 year

B : 1 year

C : 3 year

D : 4 year

9. Ten years ago the average age of a family of 4 members was 24 years. Two children having been born average age of the family is same today. What is the present age of the youngest child if they differ in age by 2 years?

Options

A : 1 year

B : 2 years

C : 3years

D : 5 years

10. The mean temperature of Monday to Wednesday was 37° C and of Tuesday to Thursday was 34° C . If in the temperature on Thursday was 4/5 th that of Monday, what was temperature on Thursday?

Options

A : 34° C

B : 35.5° C

C : 36° C

D : 36.5° C

1. The average age of 5 member of a committee is the same is it was 3 years ago ,because an old member has been replaced by a new member . the difference between the age of old and new member is?

Options

A : 2 years

B : 4 years

C : 8 years

D : 15 years

2. The average age of 11 players of a cricket is decreased by two month when two of them aged 17 years and 20 years are replaced by two reserves . the average of the reserves is?

Options

A : 17 years 1 month

B : 17 years 7 month

C : 17 years 11 months

D : 18 years 3 months

3. 5 years ago, the average of Ram and Shyam age was 20 years. now, the average age of Ram , Shyam and Mohan is 30 years . what will be Mohan's age 10 years hence?

Options

A : 45 years

B : 50 years

C : 49 years

D : 60 years

4. The average of A and B is 20 years. If C were to replace A, the average would be 19 and if C were to replace B, the Average would be 21. What are the ages of A, B and C?

Options

A : 22, 18, 20

B : 18, 22, 20

C : 20, 22, 18

D : 18, 20, 22

5. What will be the average of even numbers between 11 to 63.

Options

A : 37.5

B : 47

C : 42

D : 37

6. Calculate the average of the cubes of first five natural numbers.

Options

A : 55

B : 65

C : 45

D : 35

7. The average of 8 numbers is 14. The average of 6 of these numbers is 16. What is the average of the remaining two numbers?

Options

A : 12

B : 6

C : 8

D : 10

8. Average age of 5 boys is 16 yr,of which that of 4 boys is 16 yr, 3 months. The age of the 5th boys.

Options

A : 15yr

B : 15yr 6 months

C : 15 yr 4 months

D : 15 year 2 months

9. Eight consecutive numbers are given. If the average of the two number that appear in the middle is 6 then the sum of the eight given numbers is

Options

A : 36

B : 48

C : 54

D : 64

10. The average of 4 consecutive even numbers is 27. What is the greatest number

Options

A : 28

B : 26

C : 32

D : 30

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