RSSB Computer Instructor Reasoning & Numerical Ability — Previous Year Questions
80 Reasoning & Numerical Ability questions asked in past RSSB Computer Instructor papers, split into 8 timed practice sets — every question with its answer and explanation.
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About RSSB Computer Instructor Reasoning & Numerical Ability previous year questions
This page collects every Reasoning & Numerical Ability question that has appeared in past RSSB Computer Instructor papers on AajExam — 80 questions in total, organised into 8 short, timed practice sets. Each question is shown with its four options, the correct answer, and an explanation of the reasoning, so you can use the page either as a self-test or as a revision reference.
Why previous year questions are the highest-value Reasoning & Numerical Ability preparation you can do for RSSB Computer Instructor: recruitment boards reuse a stable pool of concepts across cycles. The wording changes, the underlying idea rarely does. Working through a few hundred genuine past Reasoning & Numerical Ability questions teaches you which sub-topics the paper actually rewards, how the examiner likes to frame distractors, and roughly how long each question type should take — none of which a syllabus document can tell you.
How to use this page: attempt questions in blocks of ten without looking at the answers, then review every question you got wrong or guessed. Read the explanation for the concept, not just the answer letter. When a concept keeps catching you out, open the related topic page linked below and drill that single area before returning here. Repeat across the full bank, and track how your accuracy on the second pass compares with your first — a 15-20% improvement is normal and is the clearest sign your preparation is working.
What is in this bank: the questions are transcribed from actual RSSB Computer Instructor question papers, kept in the original order and wording, with solutions written by subject specialists. Sets are free to attempt, work on mobile, and need no login to read. If you would rather practise a complete paper end to end under exam conditions, the full RSSB Computer Instructor previous-year papers are linked below as well.
Reasoning & Numerical Ability PYQs asked in RSSB Computer Instructor
A sample of 30 questions from the full bank of 80. Try each one before opening the solution — the remaining questions are in the timed practice sets below.
Q1.What will come in place of question mark (?) हर in the following series? P3C, RSF, पका, V12L, ....?
- A.X170
- B.X17M (७) १170 (0) Y17M P3C, RSF, T8I, V12L, ....? (A) X170 (B) X17M
- C.Y170
- D.Y17M 8 of 16 न
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Answer: A. X170
Q2.Find the wrong number in the series — ’ 2880, 480, 92, 24, 8, 4, 4
- A.480
- B.92
- C.8
- D.4 2880, 480, 92, 24, 8, 4, 4 (A) 480 (B) 92 - (C)8 (D) 4
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Answer: B. 92
Q3.A tree increases annually by 1/8" of its height. By how much will it increase after 2 years, if it stands today 64cm high?
- A.81 cm
- B.75 cm
- C.74cm
- D.72 cm
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Answer: A. 81 cm
Q4.The minimum number of straight lines required to make the following figure is —
- A.9
- B.10
- C.11
- D.12
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Answer: B. 10
Q5.Choose the Venn diagram that depicts the correct relationship among Males, Fathers and Doctors —
- A.# ७५
- B.@ . tc Oe) as , She) . Find the angle between the hour hand and the minute hand of a clock, when the time is 3.25 - (A) 4714," (B) 45,"
- C.45°
- D.40° (A) 474," (B) 451," Sot, Ste linea (D) 49° I ar Bara Bazaar. 2 is equal to - 7 (A) 1 (B) 2: (C) 4 (D) V6 3 (A) 1 (B) 2 br 1४. (04 (0
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Answer: B. @ . tc Oe) as , She) . Find the angle between the hour hand and the minute hand of a clock, when the time is 3.25 - (A) 4714," (B) 45,"
Q6.find the angle betwwen the hour hand and the minute hand of the clock, when the time is 3.25.
- A.47.5∘
- B.45.5∘
- C.45∘
- D.40∘
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Answer: A. 47.5∘
Q7.Refer to the image. Find the value.
- A.1
- B.2
- C.4
- D.√6
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Answer: A. 1
Q8.If in a certain code language “DELHI” is coded as “CCIDD”, “SIGHT” is coded as - “RGDDO”, then in the same code language “BOMBAY?” will be coded as -
- A.ANTYWS
- B.ANKYUR -
- C.AMJXVS
- D.AMIXVR होगा? (A) ANTYWS (B) ANKYUR i (C) AMJIXVS (D) AMJXVR
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Answer: C. AMJXVS
Q9.‘One morning Udai and Vishal were talking to J each other face to face at a crossing. If Vishal’s shadow was exactly to the left of ad Udai, which direction was Udai facing? 5
- A.East
- B.West f= -
- C.North .
- D.South 6 90116, 2 61.. A cuboid has six sides of different colo The red side is opposite to black, the blue s ' is adjacent to white. The brown side adjacent to blue. The red side is face do Which one of the following would be opposite to brown? (A) Red (B) Black (C) White (D) Blue
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Answer: C. North .
Q10.A cuboid has six sides of different colours. The red side is opposite to black, the blue side is adjacent to white. The brown side is adjacent to blue. The red side is face down. Which one of the following would be the opposite to brown?
- A.Red
- B.Black
- C.White
- D.Blue
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Answer: C. White
Q11.The average of 25 results-is 18. The average ‘first twelve of them is 14 and that of twelve is 17. Find the thirteenth result -
- A.78
- B.74 (७) 66 (0) 70 (A) 78 _ (B) 74
- C.66
- D.70
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Answer: A. 78
Q12.When 70 is added to 70% of a number, t obtained number is equal to 70% of 1 ; Number is equal to -
- A.35
- B.50
- C.70
- D.100 (A) 35 (B) 50 Ve (C) 70 (0) 100
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Answer: B. 50
Q13.If by arranging the letters of the w LASBEBLA, the name of a game is form what are the first and last letters of the worc formed?
- A.B, L
- B.L,S
- C.L,E
- D.S,L (A) छ, 1. (8) L,S (C)L,E (0) 5, 1.
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Answer: A. B, L
Q14.There are 120 students in a class, who read 68. Maths or History or English. It is known that no student can read all three subjects. 24 read only Maths and History, 8 read only History and English and- 21 read only Maths and English. 32 read only Maths and 13 only History. If 9 of the students who read only Maths start to read all three subjects, then find the percentage of students who read History?
- A.50%
- B.60%
- C.40%
- D.None of these
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Answer: D. None of these
Q15.A cube is coloured blue on all faces. It is cut into 64 small cubes of equal size. How many cubes have only one face coloured? oe
- A.4
- B.8 50.
- C.16
- D.24 — ar है? न है। (A) 4 (B) 8 es (C) 16 (D) 24 Z
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Answer: D. 24 — ar है? न है। (A) 4 (B) 8 es (C) 16 (D) 24 Z
Q16.What will be the difference between the first = digit of the highest number as well as of the ata lowest number after the positions of the first ed two digits in each number of the following ‘is series 738, 429, 156, 273, 894 are reversed?
- A.4
- B.5
- C.6
- D.7 (A) 4 (B) 5 (C) 6 » (D)7 Page 10 of 16 .
Show answer
Answer: D. 7 (A) 4 (B) 5 (C) 6 » (D)7 Page 10 of 16 .
Q17.A question and two statements’ are given below. You have to decide which statement is sufficient to answer the given question. How many doctors are working in a village? Statements: I. There is one doctor per one thousand villagers. II. There are 20 wards in the , village. Each ward has number of doctors equal to ae. total‘number of wards.
- A.Only I is sufficient
- B.Only वा is sufficient
- C.Both I and II are sufficient together
- D.Neither I nor II is sufficient
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Answer: B. Only वा is sufficient
Q18.If the 25" of October in a year is Thursday, then number of Mondays in that month is equal to -
- A.3
- B.4 ः (७5 "(006 व (A) 3 (B) 4
- C.5
- D.6
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Answer: C. 5
Q19.In the question given below two statements are given, which are followed by two conclusions Jand II. You have to take the statements to be true even if the statements are at variance with known facts. Make a careful study of all the conclusions and decide which conclusion . logically follows the given statements even if they seem to be at variance from commonly known facts. Statements: All cakes are desks. All desks are toffies. Conclusions: I. All toffies are cakes. Il. Some toffies are cakes.
- A.only conclusion I follows
- B.only conclusion II follows
- C.Both conclusions I and II follow
- D.Neither conclusion I nor conclusion II follows j 2 11 of 16
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Answer: B. only conclusion II follows
Q20.How many such pairs of letters are there in the word ‘FOREIGN’, each of which has as many letters between its two letters as they have between them in the English alphabet?
- A.2
- B.|
- C.3 _
- D.Nil (A) 2 (8) 1
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Answer: A. 2
Q21.How many 3’s are there in the given sequence which are neither preceded by 6 and nor immediately followed by 9? Series :9366395937891639639
- A.1
- B.2 प
- C.3
- D.4 (A) 1 : (B) 2 (C) 3 (D) 4
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Answer: B. 2 प
Q22.How many times in a day are the hands of a clock straight?
- A.22 times
- B.24 times
- C.44 times
- D.48 times
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Answer: C. 44 times
Q23.Which of the following rational number lies between = and = ? >» 4
- A.s3
- B.=7 eee 5 9 ‘fy
- C.=t
- D.=18 3 45 (A) =3 (B) = 5 9 (C) =t (0) =33 3 45
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Answer: B. =7 eee 5 9 ‘fy
Q24.Equations are solved on the basis of a certain system, on the same basis find out the correct answer for the given equation — If 5472 = 9, 6342 = 6, 7584 = 6, then 9236 =?
- A.2
- B.3
- C.4
- D.5 | 118A - % Pag (A) 2 (B) 3 KO (C) 4 (D) 5
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Answer: A. 2
Q25.Which of the following letters is 14" to the right esd of 6" letter from the left in the English alphabet? —
- A.R
- B.P OO
- C.W
- D.T (A) R (B) P (७) W (D) T
Show answer
Answer: D. T (A) R (B) P (७) W (D) T
Q26.The value of k for which quadratic equation kx (x - 2) + 6 =0 has equal roots are - vs
- A.26
- B.6 eee
- C.36
- D.4 3 (A) 2V6 (B) 6 : (७) 36 (D) 4 ©
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Answer: B. 6 eee
Q27.Raju’s father’s age is 5 years more than three times of Raju’s age. Raju’s father is 44 years old, then age of Raju is -
- A.39 years
- B.12 years ८६?
- C.13 years
- D.14 years है दी
Show answer
Answer: C. 13 years
Q28.The central angle of the C field is equal to-
- A.1.8°
- B.18° ;
- C.20°
- D.5° 1 18A + xX Page 20% 2 30% D B% : (A) 1.8° (8) 18° ' ‘ (C) 20° (D) 5०
Show answer
Answer: B. 18° ;
Q29.If the family expenditure is *56,000, the | difference between the expenses of (B, C) and (F, E) is equal to -
- A.$448 ©
- B.4480
- C.र 4380
- D.¥ 4580 | (A) 4482 (8) 4480 =
Show answer
Answer: B. 4480
Q30.Find the number of triangles in the given figure — हे SSK F “il
- A.24
- B.22 + —
- C.20 :
- D.18. 8. ABCDEFGHIJKLMNOPQRSTU VWXYZ If the second-half of the. English alphabet is ._ reversed then which letter will be 4th to the right of 20th letter from the right? ‘i (A) U (8) K (C)E (D) F -| , } ABCDEFGHIJKLMNOPQRSTU | | VWXYZ . (A) U (B)K pa (C)E (D) F 13 of 16
Show answer
Answer: B. 22 + —
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Frequently Asked Questions
How many RSSB Computer Instructor Reasoning & Numerical Ability previous year questions are available?
80 Reasoning & Numerical Ability questions from past RSSB Computer Instructor papers are available on AajExam, split into 8 practice sets. New questions are added as fresh papers are released.
Are the answers and explanations free?
Yes. Every question on this page shows its correct answer and explanation free of charge, and you do not need an account to read them. A free account only adds attempt tracking and performance analytics.
Do RSSB Computer Instructor repeat questions from previous years?
Exact repeats do occur, but the more reliable pattern is conceptual: the same Reasoning & Numerical Ability sub-topics reappear cycle after cycle with reworded questions. That is why working through past questions raises your score more reliably than reading theory alone.
How should I use these questions in my RSSB Computer Instructor preparation?
Attempt a set of ten cold, review every wrong and guessed question with its explanation, then drill the weak sub-topic on its topic page before moving on. Revisit the same set after a few days — your second-attempt accuracy is the honest measure of whether the concept stuck.
RSSB Computer Instructor Reasoning & Numerical Ability practice sets
Each set is a timed 10-question drill drawn from the same question bank.
- RSSB Computer Instructor - Reasoning & Numerical Ability PYQ Quiz 1
- RSSB Computer Instructor - Reasoning & Numerical Ability PYQ Quiz 2
- RSSB Computer Instructor - Reasoning & Numerical Ability PYQ Quiz 3
- RSSB Computer Instructor - Reasoning & Numerical Ability PYQ Quiz 4
- RSSB Computer Instructor - Reasoning & Numerical Ability PYQ Quiz 5
- RSSB Computer Instructor - Reasoning & Numerical Ability PYQ Quiz 6
- RSSB Computer Instructor - Reasoning & Numerical Ability PYQ Quiz 7
- RSSB Computer Instructor - Reasoning & Numerical Ability PYQ Quiz 8