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IBPS > Average

Explore popular questions from Average for IBPS. This collection covers Average previous year IBPS questions hand picked by experienced teachers.

Q 1.

Correct1

Incorrect-0.25

There are 50 boys in a class. Their average weight is {tex} 45 \mathrm { kg } {/tex}. When one boy leaves the class, the average reduces by 100 g. Find the weight of the boy who left the class.

A

{tex} 40.9 \mathrm { kg } {/tex}

B

{tex} 42.9 \mathrm { kg } {/tex}

{tex} 49.9 \mathrm { kg } {/tex}

D

{tex} 39.9 \mathrm { kg } {/tex}

E

None of these

Explanation

Q 2.

Correct1

Incorrect-0.25

The average age of a board of 8 functional directors in a company is the same as it was 3 years ago, a younger man having been substituted for one of the directors. How much younger was the new man than the director whose place he took.

24 years

B

26 years

C

28 years

D

27 years

E

None of the above

Explanation


Q 3.

Correct1

Incorrect-0.25

The average marks scored by Ganesh in English, Science, Mathematics and History is less than 15 from that scored by him in English, History, Geography and Mathematics. What is the difference of marks in Science and Geography scored by him?

A

40

B

50

60

D

Data inadequate

E

None of these

Explanation

Q 4.

Correct1

Incorrect-0.25

A school has 4 section of Chemistry in Class {tex} X {/tex} having 40 , {tex} 35,45 {/tex} and {tex}42{/tex} students. The mean marks obtained in Chemistry test are {tex} 50,60,55 {/tex} and {tex}45{/tex} respectively for the 4 sections. Determine the overall average of marks per student

A

50.25

52.25

C

51.25

D

53.25

E

None of the above

Explanation

Q 5.

Correct1

Incorrect-0.25

A car owner buys petrol at {tex} \mathrm{Rs.}7.50 , {/tex} {tex}\mathrm{Rs.}8.00{/tex} and {tex}\mathrm{Rs.} 8.50 {/tex} per litre for three successive years. What approximately is his average cost per litre of petrol if he spends {tex}\mathrm{Rs.} 4000 {/tex} each year?

A

{tex} \mathrm{Rs.\,}8 {/tex}

B

{tex}\mathrm{Rs.}\,9{/tex}

{tex} \mathrm{Rs.}\,7.98 {/tex}

D

{tex}\mathrm{Rs.\,}8.50{/tex}

E

None of the above

Explanation


Q 6.

Correct1

Incorrect-0.25

The average of two numbers is {tex} \mathrm { XY } {/tex}. If one number is {tex} \mathrm { X } {/tex}, then the other number is

A

{tex} \mathrm { Y } {/tex}

B

{tex} \frac { \mathrm { Y } } { 2 } {/tex}

{tex} 2 X Y - X {/tex}

D

{tex} \mathrm { X } ( \mathrm { Y } - 1 ) {/tex}

E

None of these

Explanation

Q 7.

Correct1

Incorrect-0.25

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

A

0

B

1

C

10

19

E

None of the above

Explanation

Q 8.

Correct1

Incorrect-0.25

The average of four consecutive even numbers is one-fourth of the sum of these numbers. What is the difference between the first and the last number?

A

4

6

C

2

D

Cannot be determind

E

None of these

Explanation

Q 9.

Correct1

Incorrect-0.25

A mathematics teacher tabulated the marks secured by 35 students of 8th class. The average of their marks was 72. If the marks secured by Reema was written as 36 instead of 86 then find the correct average marks upto two decimal places.

A

73.41

B

74.31

C

72.43

73.43

E

Cannot be determined

Explanation

Q 10.

Correct1

Incorrect-0.25

The average of the first and the second of three numbers is 15 more than the average of the second and the third of these numbers. What is the difference between the first and the third of these three numbers?

A

15

B

45

C

60

D

Data inadequate

None of these

Explanation

Q 11.

Correct1

Incorrect-0.25

The average of six numbers is {tex} 3.95 . {/tex} The average of two of them is {tex} 3.4 , {/tex} while the average of the other two is {tex} 3.85 . {/tex} What is the average of the remaining two numbers?

A

4.5

4.6

C

4.7

D

4.8

E

None of the above

Explanation

Q 12.

Correct1

Incorrect-0.25

The average of five consecutive odd numbers is {tex} 61 . {/tex} What is the difference between the highest and the lowest number?

8

B

2

C

5

D

Cannot be determined

E

None of these

Explanation

Q 13.

Correct1

Incorrect-0.25

Nine persons went to a hotel for taking their meals. Eight of them spent {tex} \mathrm{Rs.} 12 {/tex} each on their meals and the ninth spend {tex} \mathrm{Rs.} 8{/tex} more than the average expenditure of all the nine. What was the total money spent by them?

A

{tex} \mathrm{Rs.} 115 {/tex}

{tex} \mathrm{Rs.} 117 {/tex}

C

{tex} \mathrm{Rs.} 119 {/tex}

D

{tex} \mathrm{Rs.} 122 {/tex}

E

None of the above

Explanation

Q 14.

Correct1

Incorrect-0.25

The average age of a group of person going for picnic is 16 years. Twenty new persons with an average age of 15 years join the group on the spot due to which their average becomes 15.5 years. Find the number of persons initially going for picnic.

20

B

18

C

22

D

19

E

None of the above

Explanation

Q 15.

Correct1

Incorrect-0.25

The average weight of 45 students in a class is 52 kg. 5 of them whose average weight is 48 kg leave the class and other 5 students whose average weight is 54 kg join the class. What is the new average weight (in kg) of the class?

A

{tex} 51 \frac { 1 } { 3 } {/tex}

{tex} 52 \frac { 2 } { 3 } {/tex}

C

{tex} 52 \frac { 1 } { 3 } {/tex}

D

43.42

E

None of the above

Explanation

Q 16.

Correct4

Incorrect-1

Find the average of the following set of scores {tex} 221,231,441,359,665,525 {/tex}

A

399

B

428

407

D

415

E

None of these

Explanation

Q 17.

Correct4

Incorrect-1

Find the average of the following set of numbers: {tex} 148,88,184,166,96,122 {/tex}

A

146

B

142

C

136

D

132

None of these

Explanation

Q 18.

Correct4

Incorrect-1

Average weight of three boys {tex} \mathrm {P}{/tex},{tex}\mathrm {T \,and \, R }{/tex} is 54{tex} \frac { 1 } { 3 } {/tex} kgs while the average weight of three boys, {tex}\mathrm { E} {/tex} {tex} \mathrm {F} {/tex} and {tex} G {/tex} is {tex}\mathrm {53}{/tex} kgs. What is the average weight of {tex} \mathrm {P,} {/tex} {tex}\mathrm{ T, R, E, F \,and \ G ?} {/tex}

A

53.8{tex} \mathrm { kgs } {/tex}

B

52.4{tex} \mathrm { kgs } {/tex}

C

53.2{tex} \mathrm { kgs } {/tex}

D

Cannot be determined

None of these

Explanation


Q 19.

Correct4

Incorrect-1

The average age of 3 friends is 32 years. If the age of a fourth friend is added, their average age comes to 31 years. What is the age of the fourth friend?

A

32 years

28 years

C

24 years

D

26 years

E

None of these

Explanation

Q 20.

Correct4

Incorrect-1

The average of {tex}5{/tex} consecutive odd numbers {tex} A , B , C , D {/tex} and {tex} E {/tex} is {tex} 41 . {/tex} What is the product of {tex} A {/tex} and {tex} E ? {/tex}

A

1977

B

1517

1665

D

1591

E

None of these

Explanation


Q 21.

Correct4

Incorrect-1

The average of five numbers is {tex} 281 . {/tex} The average of the first two numbers is {tex} \mathrm {280} {/tex} and the average of the last two numbers is {tex} 178.5 . {/tex} What is the third number?

488

B

336

C

228

D

464

E

None of these

Explanation

Q 22.

Correct4

Incorrect-1

Out of three given numbers, the first number is twice the second and thrice the third. If the average of the three numbers is {tex} 154 , {/tex} what is the difference between the first and the third number?

A

126

B

42

C

166

D

52

None of these

Explanation



Q 23.

Correct4

Incorrect-1

If the value of {tex} 16 a + 16 b = 672 , {/tex} what is the average of a and b?

A

44

21

C

24

D

42

E

None of these

Explanation

Q 24.

Correct4

Incorrect-1

Find the average of the following set of scores: {tex} 152,635,121,423,632,744,365,253,302 {/tex}

A

403

B

396

C

428

D

383

None of these

Explanation

Q 25.

Correct4

Incorrect-1

What will be the average of the followings set of scores? {tex} 59,84,44,98,30,40,58 {/tex}

A

62

B

66

C

75

D

52

59

Explanation