What is the average age of children in the class?_x000D_ I. _x000D_ The age of the teacher is as many years as the number of children._x000D_ II. _x000D_ Average age is increased by 1 year if the teacher's age is also included.

Both I and II are necessary to answer

I alone sufficient while II alone not sufficient to answer

II alone sufficient while I alone not sufficient to answer

Either I or II alone sufficient to answer

Both I and II are not sufficient to answer

Both I and II are necessary to answer

How many candidates were interviewed everyday by the panel A out of the three panels A, B and C? I. The three panels on average interview 15 candidates every day. II. Out of a total of 45 candidates interviewed everyday by the three panels, the number of candidates interviewed by panel A is more by 2 than the candidates interviewed by panel c and is more by 1 than the candidates interviewed by panel B.

Either I or II alone sufficient to answer

I alone sufficient while II alone not sufficient to answer

II alone sufficient while I alone not sufficient to answer

Either I or II alone sufficient to answer

Both I and II are not sufficient to answer

Both I and II are necessary to answer

The average age of P, Q, R and S is 30 years. How old is R? I. The sum of ages of P and R is 60 years. II. S is 10 years younger than R.

Both I and II are necessary to answer

I alone sufficient while II alone not sufficient to answer

II alone sufficient while I alone not sufficient to answer

Either I or II alone sufficient to answer

Both I and II are not sufficient to answer

Both I and II are necessary to answer

The average (arithmetic mean) of 330, 360 and 390 is :

${3^{27}} + {3^{57}} + {3^{87}}$$

${3^{29}} + {3^{59}} + {3^{89}}$$

759 + Mcqs in Average in General Aptitude Page 1 McqOptions

1.	What is the average age of children in the class?_x000D_ I. _x000D_ The age of the teacher is as many years as the number of children._x000D_ II. _x000D_ Average age is increased by 1 year if the teacher's age is also included.
A.	I alone sufficient while II alone not sufficient to answer
B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer
D.	Both I and II are not sufficient to answer
E.	Both I and II are necessary to answer
Answer» E. Both I and II are necessary to answer

Discussion

2.	In a cricket team, the average age of eleven players in 28 years. What is the age of the captain? I. The captain is eleven years older than the youngest player. II. The average age of 10 players, other than the captain is 27.3 years. III. Leaving aside the captain and the youngest player, the average ages of three groups of three players each are 25 years, 28 years and 30 years respectively.
A.	Any two of the three
B.	All I, II and III
C.	II only or I and III only
D.	II and III only
E.	None of these
Answer» D. II and III only

Discussion

3.	How many marks did Tarun secure in English? I. The average mark obtained by Tarun in four subjects including English is 60. II. The total marks obtained by him in English and Mathematics together are 170. III. The total marks obtained by him in Mathematics and Science together are 180.
A.	I and II only
B.	II and III only
C.	I and III only
D.	All I, II and III
E.	None of these
Answer» F.

Discussion

4.	How many candidates were interviewed everyday by the panel A out of the three panels A, B and C? I. The three panels on average interview 15 candidates every day. II. Out of a total of 45 candidates interviewed everyday by the three panels, the number of candidates interviewed by panel A is more by 2 than the candidates interviewed by panel c and is more by 1 than the candidates interviewed by panel B.
A.	I alone sufficient while II alone not sufficient to answer
B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer
D.	Both I and II are not sufficient to answer
E.	Both I and II are necessary to answer
Answer» C. Either I or II alone sufficient to answer

Discussion

5.	The average age of P, Q, R and S is 30 years. How old is R? I. The sum of ages of P and R is 60 years. II. S is 10 years younger than R.
A.	I alone sufficient while II alone not sufficient to answer
B.	II alone sufficient while I alone not sufficient to answer
C.	Either I or II alone sufficient to answer
D.	Both I and II are not sufficient to answer
E.	Both I and II are necessary to answer
Answer» E. Both I and II are necessary to answer

Discussion

6.	The average of six numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. The average of the remaining two numbers is :
A.	0.6
B.	0.8
C.	0.5
D.	0.7
Answer» B. 0.8

Discussion

7.	The average age of 20 boys in a class is 12 years. 5 new boys are admitted to the class whose average age is 7 years. The average age of all the boys in the class becomes:
A.	.2 years
B.	.5 years
C.	2.5 years
D.	1 years
Answer» E.

Discussion

8.	The average age of 30 students is 9 years. If the age of their teacher is included, the average age becomes 10 years. The age of the teacher (in years) is :
A.	7
B.	1
C.	5
D.	0
Answer» E.

Discussion

9.	Five years ago, the average age of P and Q was 25. The average age of P, Q and R today is 25. Age of R after 5 years will be :
A.	5 years
B.	0 years
C.	0 years
D.	5 years
Answer» C. 0 years

Discussion

10.	The mean weight of 34 students of a school is 42 kg. If the weight of the teacher be included, the mean rises by 400 grams. Find the weight of the teacher (in kg.)
A.	5 kg
B.	7 kg
C.	6 kg
D.	6 kg
Answer» E.

Discussion

11.	The average age of 40 students of class is 18 years. When 20 new students are admitted to the same class, the average age of the students of the class is increased by 6 months. The average age of newly admitted students is ?
A.	9 years
B.	9 years 6 months
C.	0 years
D.	0 years 6 months
Answer» C. 0 years

Discussion

12.	A set A consists of integers 27, 28, 30 and 33. If integer k is included in the set, the average of set A will increase by 30%. What is the value of integer k ?
A.	8
B.	9
C.	3.75
D.	5.25
Answer» D. 5.25

Discussion

13.	The average (arithmetic mean) of 330, 360 and 390 is :
A.	${3^{27}} + {3^{57}} + {3^{87}}$$
B.	${3^{29}} + {3^{59}} + {3^{89}}$$
C.	${3^{60}}$$
D.	${3^{177}}$$
Answer» C. ${3^{60}}$$

Discussion

14.	The present age of a father is 3 years more than three times the age of his son. Three years hence, father's age will be 10 years more than twice the age of the son. The father's age is :
A.	3 years
B.	9 years
C.	5 years
D.	0 years
Answer» B. 9 years

Discussion

15.	The average age of husband and his wife was 23 years at the time of their marriage. After five tears they have a one-year old child. The average age of the family of three, when the child was born, was-
A.	3 years
B.	4 years
C.	8 years
D.	0 years
Answer» D. 0 years

Discussion

16.	Sachin Tendulkar has a certain average for 11 innings. In the 12th innings he scores 120 runs and thereby increases his average by 5 runs. His new average is :
A.	0
B.	2
C.	5
D.	6
Answer» D. 6

Discussion

17.	The mean of 100 observations was calculated as 40. It was founder later on that one of the observation was misread as 83 instead of 53. The correct mean is :
A.	9
B.	9.7
C.	0.3
D.	2.7
Answer» C. 0.3

Discussion

18.	A librarian purchased 50 storybooks for his library. But he saw that he could get 14 books more by spending Rs. 76 more but per book average becomes Rs. 1 less. The average price (in Rs.) of each book he bought, was :
A.	5
B.	5
C.	0
D.	0
Answer» E.

Discussion

19.	The average age of four boys A, B, C and D is 5 years and the average age A, B, D, E is 6 years. C is 8 years old. The age of E is (in years) :
A.	2
B.	3
C.	4
D.	5
Answer» B. 3

Discussion

20.	The average age of 24 boys and their teacher is 15 years. When the teacher's age is excluded, the average age decreases by 1 year. The age of the teacher is :
A.	8 years
B.	9 years
C.	0 years
D.	1 years
Answer» C. 0 years

Discussion

21.	The average of 10 items was found to be 80 but while calculating, one of the items was counted as 60 instead of 50. Then the correct average would have been :
A.	9
B.	9.25
C.	9
D.	9.5
Answer» D. 9.5

Discussion

22.	The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is :
A.	0 years
B.	5 years
C.	0 years
D.	one of the options
Answer» B. 5 years

Discussion

23.	The average age of 30 students of a class is 14 years 4 months. After admission of 5 new students in the class the average becomes 13 years 9 months. The youngest one of the five new students is 9 years 11 months old. The average age of the remaining 4 new students is :
A.	0 years 4 months
B.	2 years 4 months
C.	1 years 2 months
D.	3 years 6 months
Answer» B. 2 years 4 months

Discussion

24.	30 pens and 75 pencils altogether were purchased for Rs. 510. If the average price of a pencil was Rs. 2, what was the average price of a pen ?
A.	s. 9
B.	s. 10
C.	s. 11
D.	s. 12
Answer» E.

Discussion

25.	In an exam, the average marks obtained by Jhon in English, Math, Hindi and Drawing were 50. His average mark in Maths, Science, Social Studies and Craft were 70. If the average mark in all seven subjects is 58, his score in Maths was -
A.	0
B.	2
C.	0
D.	4
Answer» E.

Discussion

26.	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 :
A.	61
B.	62
C.	63
D.	64
Answer» C. 63

Discussion

27.	In the first 10 overs of a cricket game, the run rate was only 3.2. The run rate in the remaining 40 overs to reach the target of 282 run is :
A.	0.4
B.	0.3
C.	0.25
D.	0.5
Answer» D. 0.5

Discussion

28.	A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If he had scored 92 points, the average score for the team would have been 84. The number of points the team scored was :
A.	72
B.	65
C.	45
D.	88
Answer» C. 45

Discussion

29.	The average of runs scored by a cricketer in his 99 innings is 99. How many runs will he have to score to his 100th innings so that his average of runs in 100innings will become 100 ?
A.	00
B.	9
C.	99
D.	01
Answer» D. 01

Discussion

30.	The average of four consecutive even numbers is 15. The 2nd highest number is :
A.	2
B.	8
C.	4
D.	6
Answer» E.

Discussion

31.	The mean of 100 items was 46. Later on it was discovered that an item 16 was misread as 61 and another item 43 was misread as 34. It was also found that the number of item was 90 and not 100. Then what is the correct mean ?
A.	0
B.	0.7
C.	2
D.	2.7
Answer» C. 2

Discussion

32.	Average weight of 25 students of a class is 50 kg. If the weight of the class teacher is included , the average is increased by 1 kg. The weight of the teacher is ?
A.	6 kg
B.	7 kg
C.	4 kg
D.	5 kg
Answer» B. 7 kg

Discussion

33.	The average marks obtained by a class of 60 students is 65. The average marks of half of the students is found to be 85. The average marks of the remaining students is :
A.	5
B.	5
C.	5
D.	5
Answer» C. 5

Discussion

34.	The average of marks in Mathematics for 5 students was found to do 50. Later, it was discovered that in the case of one student the marks 48 were misread as 84. The correct average is :
A.	0.2
B.	0.8
C.	2.8
D.	8.2
Answer» D. 8.2

Discussion

35.	There are 30 students in a class. The average age of first 10 students is 12.5 years. The average age of the remaining 20 students is 13.1 years. The average age (in years) of the students of the whole class is :
A.	2.5 years
B.	2.7 years
C.	2.8 years
D.	2.9 years
Answer» E.

Discussion

36.	A cricketer had a certain average of runs for his 64 innings. In his 65th innings, he is bowled out for no score on his part. This brings down his average by 2 runs. His new average of runs is :
A.	30
B.	28
C.	0
D.	8
Answer» C. 0

Discussion

37.	What is the average of the first six (positive) odd number each of which is divisible by 7?
A.	2
B.	3
C.	7
D.	9
Answer» B. 3

Discussion

38.	An elevator can carry maximum of 16 passengers with an average weight of 80 kg. However, four boys more than the maximum carrying capacity of the elevator entered it making the average weight as 86 kg and overloading the elevator. What is the average weight of those four boys ?
A.	12 kg
B.	08 kg
C.	10 kg
D.	8 kg
Answer» D. 8 kg

Discussion

39.	The average weight of 3 men, A, B and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E whose weight is 3 kg more than that of D, replaces A then the average weight of B, C, D and E becomes 79 kg. What is the weight of A ?
A.	0 kg
B.	2 kg
C.	5 kg
D.	0 kg
Answer» D. 0 kg

Discussion

40.	If the average of x and $$\frac{1}{x}$$ (x $$ \ne $$ 0) is M, then the average of x2and $$\frac{1}{{{x^2}}}$$is :
A.	- M2
B.	- 2M2
C.	M2- 1
D.	M2+ 1
Answer» D. M2+ 1

Discussion

41.	The mean high temperature of the first four days of a week is 25°C whereas the mean of the last four days is 25.5°C. If the mean of the whole week is 25.2°C then the temperature of the 4th day is :
A.	5°C
B.	5.2°C
C.	5.6°C
D.	5.5°C
Answer» D. 5.5°C

Discussion

42.	From a class of 42 boys, a boy aged 10 years goes away and in his place, a new boy is admitted. If on account of this change, the average age of the boys in that class increases by 2 months, the age of the newcomer is :
A.	9 years
B.	7 years
C.	0 years 6 months
D.	2 years 2 months
Answer» C. 0 years 6 months

Discussion

43.	The average of nine number is 50. The average of first five numbers is 54 and that of the last three numbers is 52. Then the sixth number is :
A.	0
B.	4
C.	4
D.	4
Answer» D. 4

Discussion

44.	The average age of group of 20 girls is 15 years and that ofanother group of 25 boys it is 24 years. The average age of the two groups mixed together is :
A.	9.5 yearas
B.	0 years
C.	1 yearas
D.	1.5 years
Answer» C. 1 yearas

Discussion

45.	The average pocket money of 3 friend A, B, C is Rs. 80 in a particular month. If B spends double and C spends triple of what A spends during that month and if the average of their unspent pocket money is Rs. 60, then A spends (in Rs.)-
A.	s. 10
B.	s. 20
C.	s. 30
D.	s. 40
Answer» B. s. 20

Discussion

46.	The average of 6 observations is 45.5. If one new observation is added to the previous observations, then the new average becomes 47. The new observation is :
A.	8
B.	6
C.	0
D.	6
Answer» C. 0

Discussion

47.	The average age of a family with 5 members is 28. If one of the 5 members of age 20 is excluded the average age of the family becomes -
A.	5
B.	0
C.	0
D.	4
Answer» D. 4

Discussion

48.	The average of the largest and smallest 3 digits numbers formed by 0, 2 and 4 would be :
A.	12
B.	22
C.	13
D.	03
Answer» B. 22

Discussion

49.	Out of 20 boys, 6 are each of 1 m 15 cm height, 8 are of 1 m 10 cm and rest of 1 m 12 cm. The average height of all of them is :
A.	m 12.1 cm
B.	m 21.1 cm
C.	m 21 cm
D.	m 12 cm
Answer» B. m 21.1 cm

Discussion

50.	The average of 9 observations was found to be 35. Later on, it was detected that an observation 81 was misread as 18. The correct average of the observation is -
A.	8
B.	2
C.	2
D.	5
Answer» C. 2

Discussion

Explore topic-wise MCQs in General Aptitude.

What is the average age of children in the class?_x000D_ I. _x000D_ The age of the teacher is as many years as the number of children._x000D_ II. _x000D_ Average age is increased by 1 year if the teacher's age is also included.

How many marks did Tarun secure in English? I. The average mark obtained by Tarun in four subjects including English is 60. II. The total marks obtained by him in English and Mathematics together are 170. III. The total marks obtained by him in Mathematics and Science together are 180.

The average age of P, Q, R and S is 30 years. How old is R? I. The sum of ages of P and R is 60 years. II. S is 10 years younger than R.

The average of six numbers is 3.95. The average of two of them is 3.4, while the average of the other two is 3.85. The average of the remaining two numbers is :

The average age of 20 boys in a class is 12 years. 5 new boys are admitted to the class whose average age is 7 years. The average age of all the boys in the class becomes:

The average age of 30 students is 9 years. If the age of their teacher is included, the average age becomes 10 years. The age of the teacher (in years) is :

Five years ago, the average age of P and Q was 25. The average age of P, Q and R today is 25. Age of R after 5 years will be :

The mean weight of 34 students of a school is 42 kg. If the weight of the teacher be included, the mean rises by 400 grams. Find the weight of the teacher (in kg.)

The average age of 40 students of class is 18 years. When 20 new students are admitted to the same class, the average age of the students of the class is increased by 6 months. The average age of newly admitted students is ?

A set A consists of integers 27, 28, 30 and 33. If integer k is included in the set, the average of set A will increase by 30%. What is the value of integer k ?

The average (arithmetic mean) of 330, 360 and 390 is :

The present age of a father is 3 years more than three times the age of his son. Three years hence, father's age will be 10 years more than twice the age of the son. The father's age is :

The average age of husband and his wife was 23 years at the time of their marriage. After five tears they have a one-year old child. The average age of the family of three, when the child was born, was-

Sachin Tendulkar has a certain average for 11 innings. In the 12th innings he scores 120 runs and thereby increases his average by 5 runs. His new average is :

The mean of 100 observations was calculated as 40. It was founder later on that one of the observation was misread as 83 instead of 53. The correct mean is :

A librarian purchased 50 storybooks for his library. But he saw that he could get 14 books more by spending Rs. 76 more but per book average becomes Rs. 1 less. The average price (in Rs.) of each book he bought, was :

The average age of four boys A, B, C and D is 5 years and the average age A, B, D, E is 6 years. C is 8 years old. The age of E is (in years) :

The average age of 24 boys and their teacher is 15 years. When the teacher's age is excluded, the average age decreases by 1 year. The age of the teacher is :

The average of 10 items was found to be 80 but while calculating, one of the items was counted as 60 instead of 50. Then the correct average would have been :

The average age of husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. The present age of the husband is :

The average age of 30 students of a class is 14 years 4 months. After admission of 5 new students in the class the average becomes 13 years 9 months. The youngest one of the five new students is 9 years 11 months old. The average age of the remaining 4 new students is :

30 pens and 75 pencils altogether were purchased for Rs. 510. If the average price of a pencil was Rs. 2, what was the average price of a pen ?

In an exam, the average marks obtained by Jhon in English, Math, Hindi and Drawing were 50. His average mark in Maths, Science, Social Studies and Craft were 70. If the average mark in all seven subjects is 58, his score in Maths was -

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 :

In the first 10 overs of a cricket game, the run rate was only 3.2. The run rate in the remaining 40 overs to reach the target of 282 run is :

A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If he had scored 92 points, the average score for the team would have been 84. The number of points the team scored was :

The average of runs scored by a cricketer in his 99 innings is 99. How many runs will he have to score to his 100th innings so that his average of runs in 100innings will become 100 ?

The average of four consecutive even numbers is 15. The 2nd highest number is :

The mean of 100 items was 46. Later on it was discovered that an item 16 was misread as 61 and another item 43 was misread as 34. It was also found that the number of item was 90 and not 100. Then what is the correct mean ?

Average weight of 25 students of a class is 50 kg. If the weight of the class teacher is included , the average is increased by 1 kg. The weight of the teacher is ?

The average marks obtained by a class of 60 students is 65. The average marks of half of the students is found to be 85. The average marks of the remaining students is :

The average of marks in Mathematics for 5 students was found to do 50. Later, it was discovered that in the case of one student the marks 48 were misread as 84. The correct average is :

There are 30 students in a class. The average age of first 10 students is 12.5 years. The average age of the remaining 20 students is 13.1 years. The average age (in years) of the students of the whole class is :

A cricketer had a certain average of runs for his 64 innings. In his 65th innings, he is bowled out for no score on his part. This brings down his average by 2 runs. His new average of runs is :

What is the average of the first six (positive) odd number each of which is divisible by 7?

An elevator can carry maximum of 16 passengers with an average weight of 80 kg. However, four boys more than the maximum carrying capacity of the elevator entered it making the average weight as 86 kg and overloading the elevator. What is the average weight of those four boys ?

The average weight of 3 men, A, B and C is 84 kg. Another man D joins the group and the average now becomes 80 kg. If another man E whose weight is 3 kg more than that of D, replaces A then the average weight of B, C, D and E becomes 79 kg. What is the weight of A ?

If the average of x and $$\frac{1}{x}$$ (x $$ \ne $$ 0) is M, then the average of x2and $$\frac{1}{{{x^2}}}$$is :

The mean high temperature of the first four days of a week is 25°C whereas the mean of the last four days is 25.5°C. If the mean of the whole week is 25.2°C then the temperature of the 4th day is :

From a class of 42 boys, a boy aged 10 years goes away and in his place, a new boy is admitted. If on account of this change, the average age of the boys in that class increases by 2 months, the age of the newcomer is :

The average of nine number is 50. The average of first five numbers is 54 and that of the last three numbers is 52. Then the sixth number is :

The average age of group of 20 girls is 15 years and that ofanother group of 25 boys it is 24 years. The average age of the two groups mixed together is :

The average pocket money of 3 friend A, B, C is Rs. 80 in a particular month. If B spends double and C spends triple of what A spends during that month and if the average of their unspent pocket money is Rs. 60, then A spends (in Rs.)-

The average of 6 observations is 45.5. If one new observation is added to the previous observations, then the new average becomes 47. The new observation is :

The average age of a family with 5 members is 28. If one of the 5 members of age 20 is excluded the average age of the family becomes -

The average of the largest and smallest 3 digits numbers formed by 0, 2 and 4 would be :

Out of 20 boys, 6 are each of 1 m 15 cm height, 8 are of 1 m 10 cm and rest of 1 m 12 cm. The average height of all of them is :

The average of 9 observations was found to be 35. Later on, it was detected that an observation 81 was misread as 18. The correct average of the observation is -