SBI Clerks Numerical Ability Important Questions with Key

1. The average age of 4 students is 12 years.
The ages of three of them are 9 years, 13 years and 11 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

2. The average age of 30 boys of a class is 12 years and 20 girls is 11 years. What is the average age of all the students?
1) 11.5 yrs 2) 13 yrs 3) 12.4 yrs
4) 11.6 yrs 5) None of these

3. The average of nine numbers is 16. The average of first four numbers is 13 and the average of last four numbers is 18. What is
the middle number?
1) 22 2) 17 3) 20 4) Can’t be determined 5) None of these

4. The average of seven numbers is 21. The average of first four numbers is 17 and the last four numbers is 22. Find the fourth
number.
1) 19 2) 19.5 3) 15 4) Can’t be determined 5) None of these

5. A car travels 330 kms in 6 hours and another 150kms in 2 hours. What is the average speed of the car for the entire distance?
1) 45 kmph 2) 60 kmph 3) 50 kmph
4) 40 kmph 5) None of these

6. What is the average of first five prime numbers greater than 20?
1) 32 2) 37 3) 29.6 4) 32.2 5) None of these

7. The average age of a class of 28 students is 14 years. If the teacher’s age is also included, the average increases by one year.
Find the age of the teacher.
1) 43 2) 46 3) 42 4) 39 5) None of these

8. The average of 20 numbers is 15 and it was later found that one of the numbers was misread as 46 instead of 26. What is the
correct average?
1) 14 2) 16 3) 17 4) 15.5 5) None of these

9. The average marks of a student in Maths and English is 75. His average of marks in Maths and Science is 65. What is the difference between the marks which he obtained in English and Science?
1) 20 2) 10 3) 30 4) 25 5) None of these

10. The average weight of 8 persons increases by 1.5kg when a person weighting 65kg is replaced by a new person. What could be the weight of the new person?
1) 55 kg 2) 77 kg 3) 72 kg 4) 65 kg 5) None of these

11. Present ages of Harini and Tarini are in the ratio 5:6 respectively. After seven years this ratio becomes 6:7 respectively. What is present age of Harini?
1) 25 2) 20 3) 30 4) 35 5) None of these

12. A batsman has a certain average of runs for 16 innings.
In the 17th innings, he makes 85 runs, thereby increasing his average by 3. What is the average after 17th innings?
1) 34 2) 31 3) 37 4) 39 5) None of these

13. The marks obtained by a student in Mathematics, Science and English are respectively 128 out of 150, 60 out of 75 and 82 out of 100. Find his approximate average score in percent.
1) 75 2) 77 3) 83 4) 91 5) None of these

14. There were 36 students in a hostel. If the number of students
increased by 4, the expenses of the mess were increased by Rs.32 per day while the average expenditure per head diminished by Rs.1. What is the original expenditure of the mess?
1) Rs.628 2) Rs.596 3) Rs.618 4) Rs.648 5) None of these

15. Ramesh spends Rs.1400 per month on an average for the first five months, Rs.1250 for next seven months and saves Rs.3450 a year. What is his average monthly income?
1) Rs.1750 2) Rs.1600 3) Rs.1950
4) Rs.1575 5) None of these

16. The average monthly salary of 660 total employees in a factory is 3800. The average monthly salary of officers is Rs.21000 and the average monthly salary of the workers is Rs.3400. Find the number
of workers.
1) 645 2) 620 3) 585 4) 615 5) None of these

17. The average age of 12 men is decreased by one year when two of them of ages 28 years and 32 years are replaced by two new persons of same age. What is the age of the new person?
1) 48 2) 28 3) 24 4) 32 5) None of these

18. Average of five numbers is 19. If 7 is added to each of these numbers, what will be the average of the new numbers?
1) 21 2) 23.5 3) 23 4) 26 5) None of these

19. The average temperature for Tuesday, Wednesday and Thursday is 34.6°C. The average temperature for Wednesday, Thursday and Friday is 34.9°C. If Tuesday’s temperature recorded as 36°C ,find Thursday’s temperature.
1) 40.4°C 2) 39.2°C 3) 40.2°C 4) 41.4°C 5) None of these

20. A car travels a certain distance. The speed of the car for the first half is 60 kmph and for the remaining distance it is 90 kmph. What is the average speed of the car for the entire distance?
1) 75 kmph 2) 72 kmph
3)74 kmph 4) Can’t be determined
5) None of these

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

SBI Clerks Reasoning Practice Questions with Key

1. If in English alphabet all the letters at oddnumbered positions are sequentially replaced by even numbers, viz ‘A’ replaced by 2. ‘C’
replaced by 4 and so on and likewise all letters at even-numbered positions are replaced by odd numbers such as ‘B’ replaced by ‘1’, ‘D’ replaced by 3 and so on, then what will be the total value of the letters of the word DETAIL?
1) 48 2) 55 3) 53 4) 49 5) None of these

2. In a certain code language ‘she is sick’ is writtenas ‘$ * @’, ‘go to bed’ is written as ‘T ^ #’ and ‘sick in bed’ is written as ‘^ @ %’, then what is the code for ‘she’?
1) * 2) $ 3) @ 4) Cannot be determined 5) None of these

3. In the following number series how many such 4’s are there which are immediately followed by 6 which is not immediately followed by 3?
2 5 3 7 6 4 3 4 6 5 2 9 1 5 4 6 3 8 4 6 6 7 4 3 6 4 0 5
1) One 2) Two 3) Three 4) Four 5) None of these

4. Early morning after sunrise Sangita went for a walk. Her brother Ramesh, who was coming towards her from opposite direction, saw that
Sangita’s shadow had fallen to his right. From which direction was Ramesh coming?
1) South 2) North 3) East 4) West 5) None of these

5. Six friends A, B, C, D, E and F start climbing a hill together. After some time it is observed that ‘D’ has reached a position higher than ‘B’ but not as high as ‘E’. ‘C’ is at a position not
higher than ‘D’ and not lower than ‘A’, who is not lower than ‘F’ and not higher than ‘B’. Who has climbed the highest position?
1) D 2) E 3) B 4) Cannot be determined 5) None of these
Directions (Q. 6-10): Read the following number/ letter/ symbol series carefully and answer the questions given below it.
E C S 4 6 # 7 D F 2 H J K L * ? 3 5 B G R Q % + 4 2 4 $ ^ A I M

6. How many symbols are there in the sequence which are immediately preceded by a symbol and immediately followed by a number?
1) Two 2) One 3) Three 4) Nil 5) None of these

7. If all the symbols are dropped, which of the following will be exactly in the middle?
1) 5 2) K 3) 3 4) L 5) None of these

8. If the first half of the sequence is replaced by the second half of the sequence and vice versa without changing the order of elements
within the halves, which of the following will be fifth to the left of fourteenth element from the right?
1) θ 2) A 3) D 4) Data Inadequate 5) None of these

9. If all the numbers in the sequence are dropped and the order of remaining elements is reversed, which of the following will be seventh to the right of thirteenth element from the right?
1) F 2) # 3) % 4) Cannot be determined 5) None of these

10. In the above sequence if all the letters are replaced by numbers sequentially, viz ‘A’ replaced by 1, ‘B’ replaced by 2 and so on till
T is replaced by 9 and again starting with J replaced by 1 and so on, then how many 4’s would be there in the sequence?
1) 5 2) 6 3) 3 4) 7 5) None of these

11. If it is possible to make a meaningful word from the first, the third, the sixth and the eighth letters of the word EXPERTISE, using
each letter only once, write second letter of that word as your
answer. If more than one such word can be formed write M as your answer and if no such word can be formed write X as your answer.
1) R 2) E 3) S 4) M 5) X

12. How many pairs of letters are there in the word DIVERSITY which have as many letters between them in the word as in the alphabet?
1) One 2) Two 3) Three 4) Four 5) None of these
Directions (Q. 13-16): Study the following information carefully and answer the questions given below.
1. Seven persons A, B, C, D, E, F and G are doing different business of dry fruits, spices, tea, sugar, milk, grain and vegetables not necessarily in the same order.
2. Each one of them owns a car of different colours – red, blue, green, white, orange, purple and yellow not necessarily in the same order.
3. B is engaged in tea business and owns a yellow car. A is not
engaged in business of dry fruits, spices or grain and does not own a green or orange car. D, the owner of a blue car, is not doing business of dry fruits or sugar. E, who has a milk business, does not own a red or green car. F owns a white car and is not engaged in grain business. G, who has a business of vegetables, owns a purple
car.

13. Who is the owner of green car?
1) C 2) E 3) A or E 4) C or E 5) None of these

14. Who is engaged in business of dry fruits?
1) F 2) E 3) B 4) Data Inadequate 5) None of these

15. What is D’s business?
1) Spices 2) Tea 3) Vegetable 4) Data Inadequate 5) None of these

16. What is the colour of A’s car?
1) Purple 2) White 3) Red 4) Data Inadequate 5) None of these

17. In a certain code all the vowels are coded as @, all alternate consonants beginning with B are coded as # and the remaining consonants are coded as $, then how will the word PYSICAL be written in that code?
1) ##$@@$#@ 2) ##$$@$@# 3) $$##@#@$ 4) $$###@@$ 5) None of these

18. If both the statements ‘All bottles are boxes’ and ‘Some boxes are tanks’ are true, then which of the following statements is definitely true?
1) Some tanks are bottles
2) All boxes are either tanks or bottles
3) Some bottles are tanks
4) No bottle is tank
5) None of these

19. ‘A’ started walking straight facing West. After walking a distance of 4 metres he turned to his right and walked a distance of 2 metres, then took a left turn, walked a distance of 2 metres then turned back and walked a distance of 3 metres. He is in which direction with respect to the starting point?
1) South-East 2) North-East 3) North-West
4) South-West 5) None of these

20. If in the following set of numbers the first and the second digits are interchanged and then the newly formed numbers are arranged in ascending order, which of the original numbers will be third?
648 293 471 529 345 896 657
1) 471 2) 293 3) 657 4) 345 5) None of these

21. Ravindra remembers correctly that Somnath was born after 17th September and before 21st September. Lokesh definitely remembers that Somnath was born after 19th September and before 23rd september. On what date was Somnath born?
1) 19th or 20th September
2) 20th or 21st September
3) 20th September 4) Data Inadequate
5) None of these

22. In a certain code language the word FILAMENT is written as VPGOHKNC. How will the word CONJUGAL be written in that code?
1) NCIWLPQE 2) NCIWEQPL 3) NCWILPQE 4) NCIEWPQL
5) None of these

23. If ‘*’ means ‘x’, ‘$’ means ‘÷’, ‘#’ means ‘+’ and ‘@’ means ‘-‘, then what is the value of 68#12$4@3*8 = ?
1) 47 2) 136 3) 544 4) 78 5) None of these

24. Introducing a man, Sudha said, ‘His daughter is the only grand-daughter of my father’. How is the man related to Sudha?
1) Brother 2) Brother-in-law 3) Husband
4) Data Inadequate 5) None of these

25. In a row of girls standing from left to right facing North, Sushma is fifteenth from the left. Sushma, when shifted to her right by three places, becomes third to the left of Rubina, who is seventeenth from the right. How many girls are standing in the row?
1) 37 2) 36 3) 38 4) Data Inadequate 5) None of these.

KEY: 1 – 5, 2 – 4, 3 – 2, 4 – 2, 5 – 2, 6 – 1, 7 – 4, 8 – 2, 9 – 1, 10 – 1, 11 – 4, 12 – 2, 13 – 1, 14 – 4, 15 – 4, 16 – 3, 17 – 5, 18 – 5, 19 – 3, 20 – 5, 21 – 3, 22 – 2, 23 – 1, 24 – 1, 25 – 1.

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