Aptitude Round QuestionAverageFree Download
1.

In the first 10 overs of a cricket game, the run rate was
only 3.2. What should be the run rate in the remaining 40
overs to reach the target of 282 runs?

Answer: Option A


A family consists of two grandparents, two parents and
three grandchildren. The average age of the grandparents is
67 years, that of the parents is 35 years and that of the
grandchildren is 6 years. What is the average age of the
family?

Answer: Option B

A grocer has a sale of Rs. 6435, Rs. 6927, Rs. 6855, Rs.
7230 and Rs. 6562 for 5 consecutive months. How much sale
must he have in the sixth month so that he gets an average
sale of Rs. 6500?

A.

Rs. 4991

B.

Rs. 5991

C.

Rs. 6001

D.

Rs. 6991

Answer: Option A


The average of 20 numbers is zero. Of them, at the most,
how many may be greater than zero?

Answer: Option D

The average weight of 8 person's increases by 2.5 kg when a
new person comes in place of one of them weighing 65 kg.
What might be the weight of the new person?

A.

76 kg

B.

76.5 kg

C.

85 kg

D.

Data inadequate

E.

None of these

Answer: Option C

There are two sections A and B of a class, consisting of 36 and 44
students’ respectively.
If the average weight of section A is 40kg
and that of section B is 35kg, find the
average weight of the whole class.


A.

30.00 kg


B.

35.00 kg

?

C.

37.25 kg


D.

42.50 kg

The distance between two stations A and B is 778 km. A
train covers the journey from A to B at 84 km per hour and
returns back to A with a uniform speed of 56 km per hour.
Find the average speed of train during the whole journey.


A.

60.3 km/hr

?

B.

35.0 km/hr


C.

57.5 km/hr

?

D.

67.2 km/hr

The average of 50 numbers is 30. If two numbers, 35 and 40
are discarded, then the average of the remaining numbers is
nearly:


A.

28.32

?

B.

29.68


C.

28.78


D.

29.27

The average score of a cricketer for ten matches is 38.9
runs. If the average for the first six matches is 42, then
find the average for the last four matches.


A.

33.25


B.

33.5

?

C.

34.25


D.

35

Find the average of all numbers between 5 and 49 which are divisible by 5.
a. 20
b. 25
c. 30
d. 35
Correct Option: (b)
The average of 11 numbers is 30. If the average of first six numbers is
17.5 and that of last six is 42.5, then what is the sixth number?
a. 30
b. 36
c. 45
d. 47
View solution
Correct Option : (a)
The average of 15 numbers is 15. If the average of first five numbers is 14
and that of other 9 numbers is 16, then find the middle number.
a. 12
b. 11
c. 10
d. 9
View solution
Correct Option: (b)
The average of four consecutive even numbers is 27. Find the largest of
these numbers.
a. 28
b. 30
c. 32
d. 34
View solution
Correct Option: (b)
There are two batches A and B of a class. Batch A consists of 36 students
and batch B consists of 44 students. Find the average weight of whole
class, if average weight of batch A is 40 kg and that of batch B is 35 kg.
a. 29.23 kg
b. 32.56 kg
c. 35.66 kg
d. 37.25 kg
View solution
Correct Option : (d)
n a school, average marks of three batches of 40, 50 and 60 students
respectively is 45, 55 and 70. Find the average marks of all the students.
a. 54.78
b. 55.23
c. 50.36
d. 58.33
View solution
Correct Option: (d)
The average age of a class of 29 students is 20 years. If the age of
teacher is included, then the average increases by 3 months. Find the age
of the teacher.
a. 25. 2 years
b. 27.5 years
c. 29 years
d. 31.5 years
View solution
Correct Option: (b)

The captain of a cricket team of 11 members is 26 years old
and the wicket keeper is 3 years older. If the ages of
these two are excluded, the average age of the remaining
players is one year less than the average age of the whole
team. What is the average age of the team?

A.

23 years

B.

24 years

C.

25 years

D.

None of these

Answer: Option A

The average monthly income of P and Q is Rs. 5050. The
average monthly income of Q and R is Rs. 6250 and the
average monthly income of P and R is Rs. 5200. The monthly
income of P is:

Answer: Option B

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.

35 years

B.

40 years

C.

50 years

D.

None of these

Answer: Option B

A car owner buys petrol at Rs.7.50, Rs. 8 and Rs. 8.50 per
litre for three successive years. What approximately is the
average cost per litre of petrol if he spends Rs. 4000 each
year?

A.

Rs. 7.98

B.

Rs. 8

C.

Rs. 8.50

D.

Rs. 9

Answer: Option A


In Arun's opinion, his weight is greater than 65 kg but
less than 72 kg. His brother doest not agree with Arun and
he thinks that Arun's weight is greater than 60 kg but less
than 70 kg. His mother's view is that his weight cannot be
greater than 68 kg. If all are them are correct in their
estimation, what is the average of different probable
weights of Arun?

A.

67 kg.

B.

68 kg.

C.

69 kg.

D.

Data inadequate

E.

None of these

Answer: Option A

A pupil's marks were wrongly entered as 83 instead of 63. Due to that the
average marks for the class got increased by half. The number of pupils in
the class is :
Answer: B) 40
After replacing an old member by a new member, it was found that the
average age of five members of a club is the same as it was 3 years ago.
What is the difference between the ages of the replaced and the new member
?
Answer: D) 15
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 :
Answer: C) 3
The average of 11 numbers is 10.9. If the average of the first six numbers
is 10.5 and that of the last six numbers is 11.4, then the middle number is
:
Answer: B) 11.5
The average weight of 25 persons sitting in a boat had some value. A new
person added to them whose weight was 46 kg only. Due to his arrival, the
average weight of all the persons decreased by 5 kg. Find the average
weight of first 25 persons?
Answer: Option D
The average salary per head of the entire staff of an office including the
officers and clerks is Rs.90. The average salary of officers is Rs.600 and
that of the clerks is Rs.84. If the number of officers is 2, find the
number of officers in the office?
Answer: Option D
Three years ago the average age of a family of six members was 19 years. A
boy have been born, the average age of the family is the same today. What
is the age of the boy?

A.
1 year

B.
1.5 years

C.
2 years

D.
2.5 years
Answer: Option A
The average of five results is 46 and that of the first four is 45. The
fifth result is?
: Option D
The average of 11 results is 50, if the average of first six results is 49
and that of the last six is 52. Find the sixth result?
Answer: Option B
2 years ago, the average age of a family of 5 members was 16 years. After a
baby is born, the average age of family is the same today. Find the present
age of the baby.
a. 4 years
b. 6 years
c. 8 years
d. 8 ˝ years
Correct Option: (b)
John's marks were wrongly entered as 83 instead of 63. If the average marks
calculated for the whole class increased by half, then find the number of
students in the class.
a. 30
b. 35
c. 40
d. 45
Correct Option: (c)
The mean of 40 observations was 46. Later on it was found that an
observation 38 was wrongly taken as 33. find the corrected value of mean.
a. 40.23
b. 42.36
c. 46.12
d. 51.23
Correct Option: (c)
A person covers a distance of 60 km from P to Q at a speed of 20 km/hr and
returns from Q to P at a speed of 30 km/hr. Find the average speed of
person.
a. 22 km/hr
b. 24 km/hr
c. 26 km/hr
d. 28.2 km/hr
Correct Option: (b)
An express train runs at an average speed of 27 km/hr including the time of
stoppage at stations. Another train runs at an average speed of 41 km/hr
excluding the stoppage time at stations. Find how many minutes does a train
stop in 1 hour.
a. 20.52 min
b. 15.23 min
c. 12.50 min
d. 10.75 min
Correct Option: (a)
A batsman makes a score of 80 runs in the 16^{th} inning and
increases average by 3. What is his average after 16^{th} inning?
a. 35
b. 32
c. 29
d. 25
Correct Option:(a)
In a cricket match, 6 players had an average X of their runs. Average
increases by 10 runs, if seventh player makes a score of 112 runs. What is
the average of first 6 players.
a. 36
b. 39
c. 40
d. 42
Correct Option: (d)
The average weight of 16 boys in a class is 50.25 kg and
that of the remaining 8 boys is 45.15 kg. Find the average
weights of all the boys in the class.

A.

47.55 kg

B.

48 kg

C.

48.55 kg

D.

49.25 kg

Answer: Option C

A library has an average of 510 visitors on Sundays and 240
on other days. The average number of visitors per day in a
month of 30 days beginning with a Sunday is:

Answer: Option D


If the average marks of three batches of 55, 60 and 45
students respectively is 50, 55, 60, then the average marks
of all the students is:

A.

53.33

B.

54.68

C.

55

D.

None of these

Answer: Option B


A pupil's marks were wrongly entered as 83 instead of 63.
Due to that the average marks for the class got increased
by half (1/2). The number of pupils in the class is:

Answer: Option C

Out of 9 persons, 8 persons spent Rs. 30 each for their meals. The ninth
one spent Rs. 20 more than the average expenditure of all the nine. The
total money spent by all of them was :
A) Rs. 292.50
The average salary of all the workers in a workshop is Rs. 8000. The
average salary of 7 technicians is Rs. 12000 and the average salary of the
rest is Rs. 6000. The total number of workers in the workshop is :
Answer: B) 21
A student was asked to find the arithmetic mean of the numbers 3, 11, 7, 9,
15, 13, 8, 19, 17, 21, 14 and x. He found the mean to be 12. What should be
the number in place of x ?
Answer: B) 7
The average age of a husband and his wife was 23 years at the time of their
marriage. After five years they have a oneyear old child. The average age
of the family now is :
Answer: C) 19
In an examination, a pupil's average marks were 63 per paper. If he had
obtained 20 more marks for his Geography paper and 2 more marks for his
History paper, his average per paper would have been 65. How many papers
were there in the examination ?
Answer: D) 11
The average age of students of a class is 15.8 years. The average age of
boys in the class is 16.4 years and that of the girls is 15.4 years, The
ratio of the number of boys to the number of girls in the class is :
Answer: B) 2 : 3
The average age of 8 men is increased by years when two of them whose ages
are 21 years and 23 years are replaced by two new men. The average age of
the two new men is :
Answer: B) 30
A certain factory employed 600 men and 400 women and the average wager was
Rs. 25.50 per day, If a woman got Rs. 5 less than a man, then what are
their daily wages ?
Answer: B) m:27.50 w:22.50
The sum of five numbers is 655. The average of the first two numbers is 85
and the third number is 125. Find the average of the two numbers?
Answer: Option A
The average amount with a group of seven numbers is Rs. 20. If the newly
joined member has Rs. 50 with him, what was the average amount with the
group before his joining the group?
Answer: Option C
A salt manufacturing company produced a total of 5000 tonnes of salt in
January of a particular year. Starting from February its production
increased by 100 tonnes every month over the previous months until the end
of the year. Find its average monthly production for that year?
Answer: Option C
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 ?
Answer: Option A
The average runs scored by a batsman in 20 matches is 40. In the next 10
matches the batsman scored an average of 13 runs. Find his average in all
the 30 matches?
Answer: Option A
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