If you are preparing for RRB NTPC 2026, the reasoning section is one of the most reliable places to score high, provided you know which topics to focus on and how to approach each question type quickly. Reasoning for RRB NTPC carries 30 marks in CBT Stage 1 and 35 marks in CBT Stage 2, making it a section that can genuinely tilt your final score either way. If you master these three alone, you walk into the reasoning section with a significant scoring advantage before even looking at the other topics.
This article covers high-probability questions from each of these three areas, with solved examples and short tricks for every question so you understand not just the answer but the method behind it.
Why Analogy, Coding-Decoding, and Blood Relations Matter Most in Reasoning for RRB NTPC
Reasoning for RRB NTPC spans a wide range of topics—Series, Direction Sense, Syllogism, Puzzles, Mathematical Operations, and more. However, Analogy, Coding-Decoding, and Blood Relations consistently appear in every RRB NTPC paper with high frequency. Analogy tests your ability to identify relationships between concepts. Coding-Decoding tests pattern recognition under time pressure. Blood Relations tests your ability to map family trees quickly without getting confused by indirect connections. For the latest updates and exam information, explore RRB NTPC city intimation slip.
Furthermore, these three topics reward practice far more than theory. Reading about how to solve them once gives you maybe 30% of what you need. Actually solving 20 to 30 questions from each topic builds the automatic recognition that makes exam-day attempts fast and accurate.
Part 1 — Analogy Questions for RRB NTPC
Analogy questions ask you to identify the same type of relationship between a second pair as exists in the first pair. The relationship can be based on meaning, intensity, category, function, or numerical patterns. For complete preparation support and practice guidance, explore railway online coaching.
Analogy Question 1 — Word Analogy (Intensity)
Question: Whisper is to Shout as Stroll is to ___?
Answer: Sprint
Short Trick: Identify the relationship type first. “Whisper” and “shout” represent the soft and intense versions of the same action, speaking. Apply the same relationship to Stroll, its intense version is Sprint. Always look for the relationship of degree or intensity in word analogies.
Analogy Question 2 — Numerical Analogy
Question: 8 : 72:: 6: ?
Answer: 42
Short Trick: 8 × (8+1) = 8 × 9 = 72. Apply the same pattern to 6: 6 × (6+1) = 6 × 7 = 42. In numerical analogies, test basic operations (multiply, square, add) on the first number and check which one gives the second number. Then apply that same operation to the third number.
Analogy Question 3 — Word Analogy (Category and Function)
Question: Scales are to Fish as Feathers are to ___?
Answer: Bird
Short Trick: Scales are the covering of a fish. Feathers are the covering of a bird. In word analogies based on category and function, always ask: what is the relationship between the first word and the second word? Then apply that same relationship to find the answer.
Analogy Question 4 — Numerical Analogy (Multi-Step)
Question: 5, 26, 7. How are these three numbers related?
Answer: (5² + 1 = 26). Apply the same: (7² + 1 = 50). The missing number for a similar question with 7 would be 50.
Short Trick: When three numbers appear in a numerical analogy without a clear multiplication or addition pattern, try squaring the outer numbers and adding or subtracting small values to reach the middle number. Square + 1 and Square − 1 are the two most common patterns in RRB NTPC numerical analogies.
Analogy Question 5 — Letter Analogy
Question: BD : EG :: FH : ?
Answer: IK
Short Trick: B to E is a gap of 3 positions forward. D to G is also a gap of 3 positions forward. Apply the same: F moves 3 forward to I, and H moves 3 forward to K. Answer is IK. In letter analogies, always count the gap between the first letter of each pair and check whether the same gap applies to the second letter. For complete preparation guidance and practice support, explore railway coaching.
Analogy Question 6 — Word Analogy (Tool and Use)
Question: Pen is to Writing as Chisel is to ___?
Answer: Carving
Short Trick: A pen is used for writing. A chisel is used for carving. Tool-and-function analogies are among the most straightforward in reasoning for RRB NTPC, simply identifying what the first object does and applying the same logic to the second object.
Part 2 — Coding-Decoding Questions for RRB NTPC
Coding-decoding questions give you a coded word and ask you to either decode the logic or apply the same code to a new word. The logic is usually based on letter position shifting, reversing, or numerical substitution.
Coding-Decoding Question 1 — Letter Shift
Question: If MANGO is coded as NBOQP, how is GRAPE coded?
Answer: HSBQF
Short Trick: M→N (+1), A→B (+1), N→O (+1), G→H (+1), O→P (+1). Every letter moves one position forward in the alphabet. Apply the same: G→H, R→S, A→B, P→Q, E→F. The answer is HSBQF. Always check the shift between the first and second letter first, if it is uniform, the entire word follows the same shift.
Coding-Decoding Question 2 — Reverse Shift
Question: If STONE is coded as RSNMD, how is CLOUD coded?
Answer: BKNCT
Short Trick: S→R (−1), T→S (−1), O→N (−1), N→M (−1), E→D (−1). Every letter moves one position backward. Apply the same: C→B, L→K, O→N, U→T, D→C. The answer is BKNCT. When you spot all letters moving one step back, the decode pattern is −1 throughout.
Coding-Decoding Question 3 — Alternate Shift
Question: If TRICK is coded as UQJDL, how is FLAME coded?
Answer: GKZLF
Short Trick: T→U (+1), R→Q (−1), I→J (+1), C→D (+1) — wait, check again: T→U (+1), R→Q (−1), I→J (+1), C→B (−1), K→L (+1). The pattern alternates +1, −1, +1, −1, +1. Apply to FLAME: F→G (+1), L→K (−1), A→B… wait—correct answer: F→G, L→K, A→Z (−1 wraps), M→N (+1), E→D (−1). The answer is GKZND. Alternate shift patterns (+1, 1) are very common in reasoning for RRB NTPC—always check the first two letters’ shifts before assuming uniform movement.
Coding-Decoding Question 4 — Numerical Letter Value
Question: If CALM = 3 + 1 + 12 + 13 = 29, what is the code for BOLD?
Answer: 2 + 15 + 12 + 4 = 33
Short Trick: Assign each letter its standard alphabetical position value (A=1, B=2, C=3 … Z=26) and add them. BOLD: B=2, O=15, L=12, D=4. Sum = 33. Whenever a coding question gives you a single number as the code for a word, try summing the positional values of all letters first, it is the most common numerical coding method.
Coding-Decoding Question 5 — Paired Letter Sum
Question: If WATER is coded as 24, 25, 23 (based on paired letter position sums), what is the code for BLEND?
Answer: Pair BL: B=2, L=12, sum=14. Pair EN: E=5, N=14, sum=19. Remaining D=4. Code: 14, 19, 4.
Short Trick: Paired coding splits the word into pairs of two consecutive letters and sums their position values. Always split the word into pairs from left to right and calculate each pair’s sum separately. If the word has an odd number of letters, the last letter stays unpaired.
Coding-Decoding Question 6 — Symbol/Operation Substitution
Question: If in a coded language, P means ÷, Q means ×, R means +, and S means −, what is the value of: 18 Q 4 S 64 P 8 R 2?
Answer: Substitute: 18 × 4 − 64 ÷ 8 + 2. Using BODMAS: 64 ÷ 8 = 8. Then 18 × 4 = 72. So 72 − 8 + 2 = 66.
Short Trick: First substitute all symbols with actual operations, then solve using BODMAS strictly (division and multiplication before addition and subtraction). Symbol substitution questions are pure BODMAS after the swap, do not apply BODMAS before substituting.
Part 3 — Blood Relations Questions for RRB NTPC
Blood Relations questions require you to map family connections and determine how two people in the tree relate to each other. The key is to draw a quick diagram rather than solving in your head.
Blood Relations Question 1 — Direct Relation
Question: Pointing to a photograph, Rohan says, “She is the daughter of my grandfather’s only son.” How is the girl in the photograph related to Rohan?
Answer: Sister (or Cousin if the grandfather has only one son who is Rohan’s father)
Short Trick: “Grandfather’s only son” means Rohan’s father. “Daughter of Rohan’s father” means Rohan’s sister. Always reduce the chain step by step, grandfather’s only son → father → father’s daughter → sister. Each step reduces the chain by one level.
Blood Relations Question 2 — Pointing Statement
Question: A woman says about a man, “His mother is the only daughter of my mother.” How is the man related to the woman?
Answer: Son
Short Trick: “Only daughter of my mother” means the woman herself. So “his mother is the woman.” Therefore, the man is the woman’s son. When the statement refers to the “only daughter of my mother,” that is always the speaker herself. Recognizing this shortcut saves 30 seconds per question.
Blood Relations Question 3 — Multi-Level Chain
Question: Q is the brother of R. S is the mother of Q. T is the father of S. How is R related to T?
Answer: Granddaughter (assuming R is female) or Grandson (if R is male)
Short Trick: Build from the bottom up: T → (father of) S → (mother of) Q and R. So T is the grandfather of R. R is the grandchild of T. In multi-step chains, draw a quick vertical family tree as you read each clue, this prevents confusion between maternal and paternal lines.
Blood Relations Question 4 — Complex Family Statement
Question: If A is the brother of B, C is the sister of A, D is the father of A, and E is the mother of D, so what is C’s relationship to E?
Answer: C is E’s granddaughter.
Short Trick: E → (mother of) D → (father of) A and C. So E is A’s grandmother and C’s grandmother. C is E’s granddaughter. Whenever a question traces more than three generations, number each generation in your rough work (Generation 1 = oldest) and place each person in their correct generation to avoid errors.
Blood Relations Question 5 — Paternal/Maternal Identification
Question: Priya says, “Rahul’s father is the only son of my father. “How is Priya related to Rahul?
Answer: Priya is Rahul’s aunt (paternal)
Short Trick: “Only son of my father” = Priya’s brother. So Rahul’s father is Priya’s brother. That makes Priya the sister of Rahul’s father, which means Priya is Rahul’s paternal aunt. Whenever you see “only son/daughter of my father/mother,” that person is always the speaker’s sibling. Use this as a fixed shortcut.
Blood Relations Question 6 — Multi-Person Chain
Question: O is the mother of A. B is the mother of C and E. D is the son of A. F is the son of C. What is B’s relation to F?
Answer: Paternal Grandmother (B is C’s mother, C is F’s father, so B is F’s grandmother through the father’s side)
Short Trick: Build each link separately. B → C (mother-son). C → F (father-son). So B is F’s paternal grandmother. Always write each relationship as an arrow before trying to connect the chain end-to-end, this prevents getting lost in multi-person questions.
How to Prepare Reasoning for RRB NTPC — Section-Wise Strategy
Understanding individual question types is important, but your broader preparation strategy for reasoning for RRB NTPC needs a clear structure as well.
Start by identifying which of the three topics, Analogy, Coding-Decoding, or Blood Relations, you currently find most difficult. Spend the first two weeks of your reasoning preparation doing 15 to 20 practice questions daily from that topic alone before moving to the others.
Furthermore, previous year RRB NTPC papers from 2016, 2019, 2021, and 2024 all carry a heavy weightage of these three topics. Solving these papers under timed conditions builds familiarity with the exact level and style of questions that appear in the actual exam.
Additionally, the 90-minute CBT Stage 1 gives you roughly 27 seconds per question on average across all 100 questions. Reasoning questions in the 30-question section should take no more than 45 to 60 seconds each if you know the type well, which leaves more time for the mathematics questions that may take longer.
Moreover, maintaining an error log specifically for reasoning for RRB NTPC helps enormously. After every practice session, note down every question you got wrong and the reason why. Reviewing this log once a week reveals the patterns in your mistakes and shows you exactly which question subtypes still need work.
How Strong Reasoning Skills Directly Increase Your Score in RRB NTPC
A lot of candidates treat reasoning for RRB NTPC as a secondary priority behind mathematics and general awareness. That is a strategic mistake, and understanding why you make it helps reallocate your preparation time more effectively.
Reasoning Is the Fastest Section to Score In
Unlike mathematics, which requires multi-step calculations, or General Awareness, which depends on months of current affairs reading, reasoning questions often take 20 to 45 seconds each when you know the method. A candidate who masters Analogy, Coding-Decoding, and Blood Relations can comfortably attempt 25 to 28 out of 30 Reasoning questions in under 25 minutes, leaving extra time for the slower sections. That time buffer alone can add 4 to 6 marks to your total score simply by allowing more careful attempts in mathematics.
Accuracy in Reasoning Protects You from Negative Marking
The negative marking in RRB NTPC stands at minus 0.33 per wrong answer. Reasoning is the section where accuracy is most controllable because the answer is either logically correct or it is not, there is no partial understanding. A candidate who attempts 28 reasoning questions with 92% accuracy scores 25.6 marks. A candidate who attempts all 30 with 75% accuracy scores only 22.5 marks after negative deductions. The difference is nearly 3 marks, which in a competitive exam like NTPC can shift your rank by hundreds of positions.
Reasoning Provides a Score Floor You Can Rely On
In RRB NTPC, General Awareness questions can surprise you with an unfamiliar current affairs question or a static GK topic you did not cover. Mathematics can throw a longer calculation at you than you expected. But reasoning, once you understand the core logic of each topic, produces predictable scores. Most well-prepared candidates score between 24 and 28 out of 30 in reasoning consistently across mocks. That reliability matters, it means you enter the exam knowing that 24-plus marks are almost certain from this one section, and your remaining effort in mathematics and GA builds on top of that solid base.
Scoring Above Cutoff Becomes More Achievable
Based on RRB NTPC 2024 data, Stage 1 cutoffs for general category posts ranged from 68 to 82 marks out of 100. A candidate scoring 26 out of 30 in Reasoning needs only 42 to 56 marks combined from Mathematics and General Awareness to clear the cutoff. That is a realistic and achievable target. On the other hand, a candidate scoring only 18 in Reasoning needs 50 to 64 marks from the other two sections, a noticeably harder ask. Investing extra preparation time in Reasoning for RRB NTPC effectively lowers the pressure on your other two sections.
Reasoning Improvement Is Fast and Measurable
Unlike general awareness, where improvement takes months of consistent reading, reasoning skills improve within weeks of focused practice. Most candidates who practice 20 to 25 topic-wise Reasoning questions daily for 30 days see their mock test Reasoning scores jump by 4 to 6 marks. That rate of improvement is faster than any other section in the RRB NTPC paper. Furthermore, the improvement sticks, once you internalize the logic behind analogy patterns, coding-decoding shifts, or blood relations chains, those methods stay with you and do not require constant revision the way static GK does.
Conclusion
Reasoning for RRB NTPC is one of the most learnable sections in the entire exam, the topics follow predictable patterns, the tricks are replicable, and consistent practice produces reliable score improvement. Analogy, coding-decoding, and blood relations form the core of this section, and mastering them gives you a measurable scoring advantage over candidates who study these topics casually. The key to performing well in Reasoning for RRB NTPC is not memorizing hundreds of questions, it is understanding the logic behind each question type so deeply that new questions feel familiar even when you have never seen that exact question before. Start with these examples, practice daily, and track your improvement through mock tests. That combination is what builds the reasoning score you need to clear both CBT stages with confidence.
Frequently Asked Questions
What is the weightage of reasoning in the RRB NTPC 2026 exam?
Reasoning for RRB NTPC carries 30 marks in CBT Stage 1 and 35 marks in CBT Stage 2. In Stage 1, the paper has 100 questions in 90 minutes, split across three sections, Mathematics (30 marks), General Intelligence and Reasoning (30 marks), and General Awareness (40 marks). In Stage 2, the total increases to 120 questions in 90 minutes, with reasoning going up to 35 marks alongside mathematics at 35 marks and general awareness at 50 marks. The negative marking in both stages is 0.33 marks per wrong answer, which means accuracy in reasoning matters as much as speed. Analogy, coding-decoding, and blood relations together account for roughly 10 to 14 questions across both stages combined, making them the highest-priority topics within the reasoning section.
Are practice questions from analogy, coding-decoding, and blood relations enough to clear the RRB NTPC reasoning section?
Mastering analogy, coding-decoding, and blood relations gives you a strong foundation but does not fully cover the complete reasoning section. The RRB NTPC Reasoning section also regularly tests series completion, direction sense, syllogism, puzzles, mathematical operations, Venn diagrams, and statement-assumption questions. These three topics are the highest-frequency ones and deserve the most preparation time, but you still need to cover the full reasoning syllabus to score above the cutoff comfortably. A practical approach is to master these three topics first since they appear most frequently, then allocate the remaining preparation time to the other topics based on their expected question count. Practicing Reasoning for RRB NTPC with a mix of topic-wise drills and full-length mock tests gives you the best balance of depth and breadth.
How do I solve difficult coding-decoding questions quickly in RRB NTPC?
The fastest approach to coding-decoding in reasoning for RRB NTPC starts with identifying the shift type in the first two letters of the example. Check whether the coded letter is higher or lower in the alphabet than the original, if it is higher, the shift is forward; if lower, the shift is backward. Then check whether the shift is uniform across all letters or alternates between forward and backward. If you identify the pattern in the first two letters, you can apply it to the rest of the word without re-checking each letter individually. For numerical Coding-Decoding, where a word is coded as a single number, always try the sum of positional values first (A=1, B=2 … Z=26) because that is the most common method used in RRB NTPC. For paired coding questions, split the word into pairs from left to right before doing anything else. Practicing 15 to 20 coding-decoding questions daily for two weeks builds pattern recognition fast enough that most question types become solvable in under 40 seconds on exam day.
