EASY

Earn 100

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 $\frac{1}{2}$ . The number of pupils in the class is:

50% studentsanswered this correctly

Important Questions on Averages

MEDIUM

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

The average of three numbers is

58

. First number is

\frac{3}{4} t h

of third number. If the third number is

24

more than the second number, what will be the difference between first and the second number?

HARD

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

The average weight of

25

objects is

50 k g

. If the weight of another object X is added to it then the average weight increases by

500 g

. What is the weight of X?

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

Out of the five subjects, the average marks of Suman in the first

3

subjects were

81

and the average marks in the last

3

subjects were

74

. If her marks in the third subject were

65

, then what were her average marks in all the subjects?

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

The average height of

A

B

and

C

148 c m

. If the average height of

A

and

B

136 c m

and that of

B

and

C

125 c m

, then what is the height (in cm.) of

B

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

The average of eleven numbers is

30

. If the average of the first ten numbers is

22

, then what is the eleventh number?

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

If the average of

31, x, 42, 39, 56, 78, 83

and

91

58.5

, what is the value of

x

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

The average of the scores of

18

boys in a test is

16

, while the average of the total

30

students in the class is

18.1

. What is the average score of the girls?

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

A goes from Point X to Point Y at a speed of

60

km/hr and comes back with a speed of

80

km/hr. What is the average speed (in km/hr) of A for going and coming back?

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

Average height of a class of

12

students is

180

cm. The average decreases to

179

cm when the height of the class teacher is also added. What is the height of the teacher?

MEDIUM

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

Average of

8

numbers is

42

. If

9

is subtracted from each number then what will be the new average?

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

What is the average of first 1947 even numbers?

MEDIUM

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

$35$ is the average marks obtained by $120$ students. The average marks of successful candidates was $39$ , and that of unsuccessful candidates was $15$ . What is the number of successful candidates in that examination?

MEDIUM

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

Average of

12

numbers is

15

. If a number

41

is also included, then what will be the average of these

13

numbers?

MEDIUM

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

Average of

8

numbers is

40

. The average of first three numbers is

46

and average of next two numbers is

50

. If the sixth number is

6

and

10

less than seventh and eighth number respectively, then what is the value of eighth number?

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

Average of

43, 57, 68, 32, 97

and x is

63

. What is the value of x?

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

Ram's income is

₹ 100

more than that of Shyam. If the average income of Ram and Shyam is

₹

850

, then Ram's Income in

₹

is:

MEDIUM

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

The average of three numbers of which greatest is

16

12 .

If the smallest is half of the greatest, the remaining number is:

MEDIUM

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

An object travels $20$ meters in $4$ seconds and $15$ meters in the next two seconds. What is the average speed of the object?

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

45

is the average marks obtained by

30

students of a class. On checking, two errors were identified. On correction, one student obtained

45

more marks while other obtained

15

less marks. What is the average of corrected marks?

EASY

Elementary Mathematics>Arithmetic>Averages>Problems on Averages

The average height of the students in a class of

10

105

c m .

. If

20

more students with an average height of

120 c m

join the class, what will be the average height of all students

?

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 12. The number of pupils in the class is:

Important Questions on Averages

Learn and Prepare for any exam you want !

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 $\frac{1}{2}$ . The number of pupils in the class is: