450 + Mcqs in Average Page 2 McqOptions

51.	The mean score of 3 students in a test out of 25 is 18. Two new students lake the test. What is theÂ lowest marks that can be obtained by one newcomer who scores less than the other one for the overallÂ average of the five students to rise to 20?_x005F_x000D_ Â _x005F_x000D_
A.	22
B.	21
C.	23
D.	20
Answer» C. 23

Discussion

52.	The median of the data 1, 1/2, 1/2, 3/4, 1/4, 2, 1/2, 1/4, 3/4 is_x005F_x000D_
A.	44287
B.	44228
C.	44348
D.	44289
Answer» C. 44348

Discussion

53.	The mean score in a test of the 12 boys in a class was 16 while the overall mean of the 30 students in the class was 18.1. What was the mean score of the girls?
A.	19.8
B.	20.5
C.	20
D.	19.5
Answer» E.

Discussion

54.	The mean score in a test of the 10 boys in a class was 15 while the overall mean of the 25 students in the class was 16.2. What was the mean score of the girls?
A.	16.8
B.	17
C.	16.5
D.	17.5
Answer» C. 16.5

Discussion

55.	The mean of three numbers is 1.5. The range of this data set is 8 while the difference between the two smallest numbers is 1. The greatest of the three numbers is
A.	24
B.	20
C.	18
D.	22
Answer» C. 18

Discussion

56.	The mean of the data 1, 2, 10, 18, 3, 17, 19 is
A.	7
B.	10
C.	17
D.	70
Answer» C. 17

Discussion

57.	The mean of the data 3, 10, 10, 4, 7, 10, 5 is
A.	44395
B.	7
C.	39/7
D.	6
Answer» C. 39/7

Discussion

58.	The mean of the marks scored by 12 students of a class is 67.4 If mean of another class consisting of 15 students is 72.3,find their combined mean?_x005F_x000D_
A.	70.12
B.	69.85
C.	71.23
D.	68.94
Answer» B. 69.85

Discussion

59.	The mean of the data 1, 1/2, 1/2, 3/4, 1/4, 2, 1/2, 1/4, 3/4 is
A.	15/18
B.	13/18
C.	44446
D.	44447
Answer» C. 44446

Discussion

60.	The mean of the 8 smallest numbers from a group is 17, while the mean of all the numbers of the groupÂ taken together is 20. If the mean of the numbers leaving the smallest eight out is 22, how many numbersÂ were present in the group in all?_x005F_x000D_
A.	22
B.	20
C.	18
D.	19
Answer» C. 18

Discussion

61.	The mean of the 5 smallest numbers from a group is 15 while the mean of all the numbers of the group taken together is 17. If the mean of the numbers leaving the smallest five out is 18.25,how many numbers were there in the group in all?
A.	13
B.	12
C.	8
D.	14
Answer» B. 12

Discussion

62.	The mean of marks secured by 65 students in division A of class X is 54, 30 students of division B is 50 and that of 55 students of division C is 48. Find theÂ mean of marks of the students of three divisions of Class X.
A.	50.3
B.	49.6
C.	51
D.	52.4
Answer» D. 52.4

Discussion

63.	The mean of the 5 smallest numbers from a group is 15 while the mean of all the 13 members of the group taken together is 17. What is the mean of the 8 largest numbers?
A.	18.5
B.	17.75
C.	18.75
D.	18.25
Answer» E.

Discussion

64.	The mean of marks secured by 60 students in division A of class X is 66, 45 students of division B is 62 and that of 75 students of division C is 60. Find theÂ mean of marks of the students of three divisions of Class X.
A.	61.8
B.	62.5
C.	61.1
D.	63.9
Answer» C. 61.1

Discussion

65.	The mean of marks secured by 60 students in division A of class X is 64, 40 students of division B is 60 and that of 60 students of division C is 58. Find theÂ mean of marks of the students of three divisions of Class X.
A.	60.05
B.	59.35
C.	62.15
D.	60.75
Answer» E.

Discussion

66.	The mean of marks secured by 50 students in division A of class X is 61, 25 students of division B is 57 and that of 50 students of division C is 55. WhatÂ will be the mean of marks of the students of three divisions of Class X?
A.	57.1
B.	56.4
C.	59.2
D.	57.8
Answer» E.

Discussion

67.	The mean of marks secured by 55 students in division A of class X is 58, 45 students of division B is 54 and that of 75 students of division C is 52. Find theÂ mean of marks of the students of three divisions of Class X.
A.	53.7
B.	54.4
C.	53
D.	55.8
Answer» C. 53

Discussion

68.	The mean of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. FindÂ the mean of marks of the students of three divisions of Class X.
A.	65.5
B.	64.8
C.	64.1
D.	66.9
Answer» B. 64.8

Discussion

69.	The mean of marks secured by 45 students in division A of class X is 56, 40 students of division B is 52 and that of 40 students of division C is 50. FindÂ the mean of marks of the students of three divisions of Class X.
A.	52.1
B.	51.4
C.	52.8
D.	54.2
Answer» D. 54.2

Discussion

70.	The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is :
A.	35
B.	36.5
C.	40
D.	42
Answer» C. 40

Discussion

71.	The mean of marks secured by 30 students in division-A of class X is 67, 55 students of division-B is 63 and that of 40 students of division-C is 61. What isÂ the mean of marks of the students of three divisions of Class X?
A.	63.32
B.	62.62
C.	61.92
D.	64.72
Answer» B. 62.62

Discussion

72.	The mean of marks secured by 35 students in division A of class X is 65, 45 students of division B is 61 and that of 70 students of division C is 59. What isÂ the mean of marks of the students of three divisions of Class X?
A.	60.3
B.	59.6
C.	61
D.	62.4
Answer» D. 62.4

Discussion

73.	The mean of 21 observations (all different) is 40. If each observation greater than the median isÂ increased by 21, then the mean of observations will become:
A.	50
B.	30
C.	50.5
D.	45
Answer» B. 30

Discussion

74.	The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The 15th observation is
A.	20
B.	24
C.	26
D.	28
Answer» D. 28

Discussion

75.	The mean of 12 observations is 15. One more observation is included and the new mean becomes 16. The 13th observation is
A.	2
B.	24
C.	26
D.	28
Answer» E.

Discussion

76.	The mean of 100 observations is 40. It is found that an observation 84 was misread as 48. Then the correct mean is ?
A.	40.36
B.	41.24
C.	41.92
D.	42.05
Answer» B. 41.24

Discussion

77.	The mean of 100 observations was calculated as 40. It was found later on that one of the observations was misread as 83 instead of 53. The correctÂ mean is:
A.	39
B.	39.7
C.	40.3
D.	42.7
Answer» C. 40.3

Discussion

78.	The mean of 10 observations is 13. Two more observations are included and the new mean becomes 14. The mean of two new observations is_x005F_x000D_
A.	19
B.	18
C.	17
D.	16
Answer» B. 18

Discussion

79.	The mean of 10 observations is 17. One more observation is included and the new mean becomes 16. The 11th observation is_x005F_x000D_
A.	16
B.	8
C.	6
D.	12
Answer» D. 12

Discussion

80.	The mean and median of 7, 5, 5, 2, 7, 6, 5, 3, 7, 6_x005F_x000D_
A.	5.3 and 5
B.	5 and 6
C.	5 and 5.5
D.	5.3 and 5.5
Answer» E.

Discussion

81.	The mean height of 25 boys in a class is 150 cm, and the mean height of 35 girls in the same class is 145 cm. The combined mean height of 60 students in the class is ___ (app)
A.	146
B.	143
C.	147
D.	145
Answer» D. 145

Discussion

82.	The mean deviation of the data 3, 10, 10, 4, 7, 10, 5 is :
A.	49/7
B.	44396
C.	50/7
D.	44395
Answer» E.

Discussion

83.	The average weight of Shubha, Govinda and Reshma is 65 kg. If the average weight of Shubha and Govinda be 63 kg and that of Govinda and Reshma beÂ 70 kg, then the weight of Govinda is
A.	41
B.	71
C.	88
D.	46
Answer» C. 88

Discussion

84.	The average weight of two players P and Q of a football team is 38 kg. The average weight of P, Q and their coach T is 49 kg. What is the weight (in kg) ofÂ coach?
A.	71
B.	46
C.	76
D.	91
Answer» B. 46

Discussion

85.	The average weight of Somdev, Gurdeep and Ritu is 85 kg. If the average weight of Somdev and Gurdeep be 79 kg and that of Gurdeep and Ritu be 73 kg, then the weight of Gurdeep is
A.	78
B.	49
C.	72
D.	90
Answer» C. 72

Discussion

86.	The average weight of Shivshankar, Gopesh and Reena is 97 kg. If the average weight of Shivshankar and Gopesh is 93 kg and that of Gopesh and ReenaÂ is 82 kg, then the weight of Gopesh is
A.	72
B.	56
C.	59
D.	63
Answer» D. 63

Discussion

87.	The average weight of P, Q and R is 47 kg. If the average weight of P and Q be 32.5 kg and that of Q and R be 48.5 kg, then what is the weight of Q (inÂ kgs)?
A.	25
B.	29
C.	21
D.	33
Answer» D. 33

Discussion

88.	The average weight of P, Q and R is 45 kg. If the average weight of P and Q be 36.5 kg and that of Q and R be 52 kg, then what is the weight (in kgs) of Q?
A.	42
B.	44
C.	46
D.	48
Answer» B. 44

Discussion

89.	The average weight of P, Q and R is 71 kg. If the average weight of P and Q be 66 kg and that of Q and R be 76.5 kg, then the weight (in kg) of Q is.
A.	60
B.	72
C.	81
D.	75
Answer» C. 81

Discussion

90.	The average weight of L, M and N is 93 kg. If the average weight of L and M be 89 kg and that of M and N be 96.5 kg, then the weight (in kg) of M isÂ ________.
A.	92
B.	86
C.	101
D.	95
Answer» B. 86

Discussion

91.	The average weight of a group of boys is 30 kg. After a boy of weight 35 kg joins the group, the average weight of the group goes up by 1 kg. Find the number of boys in the group originally ?
A.	6
B.	8
C.	4
D.	5
Answer» D. 5

Discussion

92.	The average weight of a class of 24 students is 35 kg. If the weight of the teacher beÂ included, the average rises by 400 g. The weight of the teacher is :
A.	45 kg
B.	46 kg
C.	47 kg
D.	48 kg
Answer» B. 46 kg

Discussion

93.	The average weight of 45Â passengers in a bus is 52 kg. 5 of them whose average weight is 48 kg leave the bus and other 5 passengers whose average weight is 54 kg join the bus at the same stop. What is the new average weight of the bus?
A.	54.21 kgs
B.	51.07 kgs
C.	52.66 kgs
D.	53.45 kgs
Answer» D. 53.45 kgs

Discussion

94.	The average weight of 50 boys in a class is 45 Kg. When one boy leaves the class, the average reduces by 100g. Find the weight of the boy who left the class.
A.	50 Kg
B.	50.8 Kg
C.	49 Kg
D.	49.9 Kg
Answer» E.

Discussion

95.	The average weight of 30 students in a class is 25 kgs. If the weight of the class teacher is added, the average weight increase by 2 kgs. The weight of the class teacher in kgs is
A.	86
B.	84
C.	81
D.	87
Answer» E.

Discussion

96.	The average weight of 35 apples is 50 grams. If some apples of weight 40 grams each were removed, then average weight becomes 57.5 grams. How many apples of weight 40 grams were removed?
A.	5
B.	10
C.	15
D.	20
Answer» D. 20

Discussion

97.	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 weightÂ 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.	70 Kg
B.	72 Kg
C.	75 Kg
D.	80 Kg
Answer» D. 80 Kg

Discussion

98.	The average weight of 25 candles is 40 grams. If some candles of weight 50 grams each were removed, then average weight becomes 37.5 grams. How many candles of weight 50 grams each were removed?Â _x005F_x000D_
A.	3
B.	5
C.	8
D.	12
Answer» C. 8

Discussion

99.	The average weight of 25 bags is 55 kg. The weight of one bag was misread as 65 instead of 56. Find the correct mean value.
A.	55.25
B.	55.36
C.	54.64
D.	55.65
Answer» D. 55.65

Discussion

100.	The average weight of 100 students is 32 kg. The average weight of first 49 students is 30 kg and of last 50 students is 34 kg. What is the weight (inÂ kg) of the 50thÂ student?
A.	25
B.	30
C.	32
D.	33
Answer» C. 32

Discussion

Explore topic-wise MCQs in Arithmetic Ability.

The mean score of 3 students in a test out of 25 is 18. Two new students lake the test. What is theÂ lowest marks that can be obtained by one newcomer who scores less than the other one for the overallÂ average of the five students to rise to 20?_x005F_x000D_ Â _x005F_x000D_

The median of the data 1, 1/2, 1/2, 3/4, 1/4, 2, 1/2, 1/4, 3/4 is_x005F_x000D_

The mean score in a test of the 12 boys in a class was 16 while the overall mean of the 30 students in the class was 18.1. What was the mean score of the girls?

The mean score in a test of the 10 boys in a class was 15 while the overall mean of the 25 students in the class was 16.2. What was the mean score of the girls?

The mean of three numbers is 1.5. The range of this data set is 8 while the difference between the two smallest numbers is 1. The greatest of the three numbers is

The mean of the data 1, 2, 10, 18, 3, 17, 19 is

The mean of the data 3, 10, 10, 4, 7, 10, 5 is

The mean of the marks scored by 12 students of a class is 67.4 If mean of another class consisting of 15 students is 72.3,find their combined mean?_x005F_x000D_

The mean of the data 1, 1/2, 1/2, 3/4, 1/4, 2, 1/2, 1/4, 3/4 is

The mean of the 8 smallest numbers from a group is 17, while the mean of all the numbers of the groupÂ taken together is 20. If the mean of the numbers leaving the smallest eight out is 22, how many numbersÂ were present in the group in all?_x005F_x000D_

The mean of the 5 smallest numbers from a group is 15 while the mean of all the numbers of the group taken together is 17. If the mean of the numbers leaving the smallest five out is 18.25,how many numbers were there in the group in all?

The mean of marks secured by 65 students in division A of class X is 54, 30 students of division B is 50 and that of 55 students of division C is 48. Find theÂ mean of marks of the students of three divisions of Class X.

The mean of the 5 smallest numbers from a group is 15 while the mean of all the 13 members of the group taken together is 17. What is the mean of the 8 largest numbers?

The mean of marks secured by 60 students in division A of class X is 66, 45 students of division B is 62 and that of 75 students of division C is 60. Find theÂ mean of marks of the students of three divisions of Class X.

The mean of marks secured by 60 students in division A of class X is 64, 40 students of division B is 60 and that of 60 students of division C is 58. Find theÂ mean of marks of the students of three divisions of Class X.

The mean of marks secured by 50 students in division A of class X is 61, 25 students of division B is 57 and that of 50 students of division C is 55. WhatÂ will be the mean of marks of the students of three divisions of Class X?

The mean of marks secured by 55 students in division A of class X is 58, 45 students of division B is 54 and that of 75 students of division C is 52. Find theÂ mean of marks of the students of three divisions of Class X.

The mean of marks secured by 45 students in division A of class X is 69, 65 students of division B is 65 and that of 50 students of division C is 63. FindÂ the mean of marks of the students of three divisions of Class X.

The mean of marks secured by 45 students in division A of class X is 56, 40 students of division B is 52 and that of 40 students of division C is 50. FindÂ the mean of marks of the students of three divisions of Class X.

The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is :

The mean of marks secured by 30 students in division-A of class X is 67, 55 students of division-B is 63 and that of 40 students of division-C is 61. What isÂ the mean of marks of the students of three divisions of Class X?

The mean of marks secured by 35 students in division A of class X is 65, 45 students of division B is 61 and that of 70 students of division C is 59. What isÂ the mean of marks of the students of three divisions of Class X?

The mean of 21 observations (all different) is 40. If each observation greater than the median isÂ increased by 21, then the mean of observations will become:

The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The 15th observation is

The mean of 12 observations is 15. One more observation is included and the new mean becomes 16. The 13th observation is

The mean of 100 observations is 40. It is found that an observation 84 was misread as 48. Then the correct mean is ?

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

The mean of 10 observations is 13. Two more observations are included and the new mean becomes 14. The mean of two new observations is_x005F_x000D_

The mean of 10 observations is 17. One more observation is included and the new mean becomes 16. The 11th observation is_x005F_x000D_

The mean and median of 7, 5, 5, 2, 7, 6, 5, 3, 7, 6_x005F_x000D_

The mean height of 25 boys in a class is 150 cm, and the mean height of 35 girls in the same class is 145 cm. The combined mean height of 60 students in the class is ___ (app)

The mean deviation of the data 3, 10, 10, 4, 7, 10, 5 is :

The average weight of Shubha, Govinda and Reshma is 65 kg. If the average weight of Shubha and Govinda be 63 kg and that of Govinda and Reshma beÂ 70 kg, then the weight of Govinda is

The average weight of two players P and Q of a football team is 38 kg. The average weight of P, Q and their coach T is 49 kg. What is the weight (in kg) ofÂ coach?

The average weight of Somdev, Gurdeep and Ritu is 85 kg. If the average weight of Somdev and Gurdeep be 79 kg and that of Gurdeep and Ritu be 73 kg, then the weight of Gurdeep is

The average weight of Shivshankar, Gopesh and Reena is 97 kg. If the average weight of Shivshankar and Gopesh is 93 kg and that of Gopesh and ReenaÂ is 82 kg, then the weight of Gopesh is

The average weight of P, Q and R is 47 kg. If the average weight of P and Q be 32.5 kg and that of Q and R be 48.5 kg, then what is the weight of Q (inÂ kgs)?

The average weight of P, Q and R is 45 kg. If the average weight of P and Q be 36.5 kg and that of Q and R be 52 kg, then what is the weight (in kgs) of Q?

The average weight of P, Q and R is 71 kg. If the average weight of P and Q be 66 kg and that of Q and R be 76.5 kg, then the weight (in kg) of Q is.

The average weight of L, M and N is 93 kg. If the average weight of L and M be 89 kg and that of M and N be 96.5 kg, then the weight (in kg) of M isÂ ________.

The average weight of a group of boys is 30 kg. After a boy of weight 35 kg joins the group, the average weight of the group goes up by 1 kg. Find the number of boys in the group originally ?

The average weight of a class of 24 students is 35 kg. If the weight of the teacher beÂ included, the average rises by 400 g. The weight of the teacher is :

The average weight of 45Â passengers in a bus is 52 kg. 5 of them whose average weight is 48 kg leave the bus and other 5 passengers whose average weight is 54 kg join the bus at the same stop. What is the new average weight of the bus?

The average weight of 50 boys in a class is 45 Kg. When one boy leaves the class, the average reduces by 100g. Find the weight of the boy who left the class.

The average weight of 30 students in a class is 25 kgs. If the weight of the class teacher is added, the average weight increase by 2 kgs. The weight of the class teacher in kgs is

The average weight of 35 apples is 50 grams. If some apples of weight 40 grams each were removed, then average weight becomes 57.5 grams. How many apples of weight 40 grams were removed?

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 weightÂ 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?

The average weight of 25 candles is 40 grams. If some candles of weight 50 grams each were removed, then average weight becomes 37.5 grams. How many candles of weight 50 grams each were removed?Â _x005F_x000D_

The average weight of 25 bags is 55 kg. The weight of one bag was misread as 65 instead of 56. Find the correct mean value.

The average weight of 100 students is 32 kg. The average weight of first 49 students is 30 kg and of last 50 students is 34 kg. What is the weight (inÂ kg) of the 50thÂ student?