IBPS Clerks Numerical Ability Model Questions – Averages

The average of a number of quantities can be obtained by dividing the total of the quantities by the number of quantities Average = Total of the quantities / Number of quantities

1. Find the average of 135, 298, 391, 814, 272, 193, 584 and 729.
1) 431 2) 426 3) 412 4) 427 5) None of these

2. The average age of 4 boys is 11 years. The ages of three of them are 7 years, 12 years and 10 years. Find the age of the fourth student.
1) 12.5 yrs 2) 15 yrs 3) 12 yrs 4) 13 yrs 5) None of these

3. The average age of students in section A of 30 students is 9 years and the average age of students of section B of 20 students is 11 years. Find the average age of students in both sections taken together.
1) 10 yrs 2) 9.8 yrs 3) 10.4 yrs 4) 9.5 yrs 5) None of these

4. The average of seven numbers is 17. The average of first three numbers is 14 and the average of last three numbers is 19. What is the middle number?
1) 15 2) 17 3) 20 4) Can’t be determined 5) None of these

5. The average of five numbers is 18. The average of first three numbers is 16 and the last three numbers is 21. Find the third number.
1) 21 2) 19 3) 22 4) Can’t be determined 5) None of these

6. The average age of a class of 24 students is 11 years. If the teacher’s age is also included, the average increases by one year. Find the age of the teacher.
1) 35 2) 39 3) 34 4) 36 5) None

7. The average age of five children and their father is 13 years. It is reduced by 4 years if the father be excluded. How old is the
father?
1) 33 yrs 2) 36 yrs 3) 32 yrs 4) 42 yrs 5) None

8. The average weight of 6 persons increases by 1.5 kg when a person 54 kg weight is replaced by a new person. What could be the weight of the new person?

1) 55 kg 2) 67 kg 3) 62 kg 4) 63 kg 5) None of these

9. A train covers a distance of 275 kms in 5 hours and another distance of 225 kms in 3 hours. What is the average speed of the
train for the entire distance?
1) 57.5 kmph 2) 60 kmph 3) 62.5 kmph 4) 50 kmph 5) None of these

10. A cricketer’s average for 11 matches is 25 runs. In the next four matches he scored 72, 34, 51 and 62 runs. Find his new average
for the 15 matches.
1) 39 2) 34 3) 36 4) 28 5) None

11. The average of 20 numbers is 14 and it was later found that one of the numbers was misread as 26 instead of 36. What is the
correct average?
1) 15 2) 14.5 3) 17 4) 15.5 5) None

12. Present ages of Kavitha and Savitha are in the ratio 4:5
respectively. After six years the ratio becomes 5:6. What is present age of Kavitha?
1) 25 yrs 2) 20 yrs 3) 30 yrs 4) 35 yrs 5) None

13. In a company there are 600 male and 400 female employees. Their average wage was Rs. 25 per hour. If a female employee gets Rs. 5 less than a male employee, what was the wage of a male employee per hour?
1) Rs. 27 2) Rs. 22 3) Rs. 24 4) Rs. 29 5) None

14. The average marks of a student in English and Science is 87. His
average of marks in English and Maths is 72. What is the difference
between the marks which he obtained in Science and Maths?
1) 20 2) 35 3) 30 4) 25 5) None of these

15. The average temperature for Wednesday, Thursday and Friday is 32.8 °C. The average temperature for Thursday, Friday and Saturday is 33.1 °C. If Wednesday’s temperature recorded as 34 °C, find
Saturday’s temperature.
1) 39.2 °C 2) 34.9 °C 3) 38.2 °C 4) 41.2 °C 5) None of these

16. A tree is 4.6 metres tall, another is half as high and the third tree is 3 times the height of the first tree. Find the average height of the three trees.
1) 5.2 m 2) 6.1 m 3) 5.8 m 4) 6.9 m 5) None of these

17. A batsman has a certain average of runs for 14 innings. In the 15th innings, he makes a score of 67 runs, thereby increasing his
average by 3. What is the average after 15th innings?
1) 24 2) 22 3) 25 4) 27 5) None

18. A car travels a certain distance. The speed of the car for the first half is 80 kmph and for the remaining distance it is 120 kmph. What is the average speed of the car for the entire distance?
1) 100 kmph 2) 92 kmph 3) 85 kmph 4) Can’t be determined 5) None

19. Srinivas spends Rs.1350 per month on an average for the first seven months, Rs.1225 for next five months and saves Rs.2665 a
year. What is his average monthly income?
1) Rs.1520 2) Rs.1680 3) Rs.1750 4) Rs.1575 5) None of these

20. 5 kg sugar is purchased at Rs.10 per kg, 6 kg at Rs.11 and 9 kg at Rs.12 per kg. What is the weighted average price of sugar per kg?
1) Rs. 11 2) Rs. 10.9 3) Rs. 11.2 4) Rs. 11.8 5) None of these

Answers: 1-4; 2-2; 3-2; 4-3; 5-1; 6-4; 7-1; 8-4; 9-3; 10-5; 11-2; 12-5; 13-1; 14-3; 15-2; 16-4; 17-3; 18-5; 19-1; 20-3.

IBPS Clerks Exam Numerical Ability Model Questions with Answers

IBPS Clerks Exam Model QuestionsIBPS has issued notification for IBPS Common Written Examination (CWE) for Clerks. The examination is aimed at shortlisting candidates for the Clerks posts in 20 nationalized banks in India. Numerical Ability is a bit difficult section of IBPS – CWE for Clerks. These model / practice questions with answers / key will be useful for those appearing for IBPS Clerks exam.

1. What is 35% of 3780?
A) 1342 B) 1432 C) 1323 D) 1370 E) None of these

2. 145 cm is what percent of 9 metre?
A) 10% B) 15% C) 6.25% D) 25% E) 12.5%

3. 42% of a number is 1612.8. What is 59% of that number?
A) 2416.3 B) 2088.6 C) 2403.7 D) 2265.6 E) None of these

4. The difference between 57% of a number and 39% of the same number is 468. What is 53% of that number?
A) 1378 B) 1482 C) 1558 D) 1670 E) None of these

5. Ramesh spends 85% of his monthly income and thereafter saves Rs.1365. Find his monthly income.
A) Rs.8200 B) Rs.9100 C) Rs.9400 D) Rs.9450 E) None of these

6. In a shelf there are 30 English books, 20 Hindi books and 25 Telugu books. Find the percentage of English books.
A) 30% B) 15% C) 25% D) 60% E) None of these

7. If two numbers are respectively 30% and 40% more than a third number, what percentage is the first of the second?
A) 10.25% B) 75% C) 92.85% D) 70.35% E) 47.75%

8. A student has to secure 30% marks to pass He gets 89 marks and fails by 31 marks. Find the maximum marks.
A) 500 B) 400 C) 1200 D) 800 E) 600

9. A student scores 20% marks and fails by 25 marks while another student who scores 32% marks, gets 35 marks more than the minimum required pass marks. What are the maximum marks for the examination?
A) 600 B) 400 C) 500 D) 800 E) None of these

10. A plot of 525 sq. ft. is available at the rate of Rs. 1500 per sq. ft. If 15% of the total cost of the plot is to be paid for booking the plot, how much is the booking amount?
A) Rs.121750 B) Rs.119625 C) Rs.122375 D) Rs. 118125 E) None of these

11. 48 percent of first number is 60 percent of the second number. What is the respective ratio of the first number to the second number?
A) 4:5 B) 7:4 C) 4:3 D) 5:4 E) None of these

12. If the length of the rectangle is increased by 40% and breadth is decreased by 30%, then find the percentage change in the area
of the rectangle.
A) 10% increase B) 12% decrease C) 2% increase D) 5% increase
E) None of these

13. The ratio of number of boys and girls in a school is 4:5. 25% boys and 20 percent girls fail in the exam. Find the approximate percentage of students who fail in the exam.
A) 20% B) 15% C) 22% D) 18% E) 27%

14. If the numerator of a fraction is increased by 20% and its denominator is decreased by 30%, the value of the fraction is 20
/ 21 . Find the original fraction.
A) 5 / 9 B) 5 / 7 C) 4 / 9 D) 3 / 4 E) None of these

15. The price of petrol is increased by 25%. By what percent
must a consumer reduce his consumption of petrol so that there
is no change in the expenditure on petrol?
A) 25% B) 10% C) 20% D) 30% E) None of these

16. At an election, a candidate who gets 35% of the total votes is defeated by a majority of 450 votes. Find the total number of
votes recorded.
A) 500 B) 1000 C) 1200 D) 1500 E) 600

17. Rani spends 20% of her monthly salary on rent, 15% of salary on household expenditure, 30% on cloths and 20% on school fees. If she can save Rs.1365 every month, find her monthly salary.
A) Rs.5500 B) Rs.5100 C) Rs.5200 D) Rs.4500 E) Rs.5900

18. In an examination 35% failed in Mathematics, 42% failed in
Science and 13% failed in both the subjects. What percentage
of students passed in both subjects?
A) 36% B) 10% C) 27% D) 64% E) None of these

19. Population of a town increase 5% annually. If its present population is 48000, what will be its population after two years?
A) 52920 B) 51800 C) 52840 D) 49560 E) None of these

20. A reduction of 20% in the price of apples would enable a man to buy 5 apples more for Rs.25. Find the reduced price per apple.
A) Rs.5 B) Rs.1 C) Rs.25 D) Rs.4 E) None of these

21. A’s income is 20% less than B’s income and B’s income is 10% less than C’s income. If C’s income is Rs.5400, find A’s income.
A) Rs.4500 B) Rs.3780 C) Rs.3950 D) Rs.3888 E) None of these

22. 60% of the students in a school are boys. If the number of girls in the school is 300, then find the number of boys in the school.
A) 550 B) 450 C) 350 D) 600 E) None of these

KEY: 1-C; 2-B; 3-D; 4-A; 5-B; 6-E; 7-C; 8-B; 9-C; 10-D; 11-D; 12-E; 13-C; 14-A; 15-C; 16-D; 17-E; 18-A; 19-A; 20-B; 21-D; 22-B.

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