Which General Intelligence & Reasoning topics matter most for RRB NTPC?

Analogies, Alphabetical & Number Series carry the highest question counts based on previous-year analyses.

Is this General Intelligence & Reasoning material free?

Yes — every chapter, practice set and flashcard deck here is free. Premium mock tests and live courses from tutors are labelled separately.

RRB NTPCGeneral Intelligence & Reasoning

General Intelligence & Reasoning for RRB NTPC

30 questions, 4 options each — Analogies and Series are the heaviest topics.

📊 30 Q · 30 marks (30% of CBT 1)

How toppers play this section

Analogies and Alphabetical & Number Series are tied as the section's heaviest topics, together worth over a fifth of the section — both reward the same core discipline of stating a relationship or pattern precisely before matching it. Coding-Decoding and Mathematical Operations both hinge on the same rewrite-first-calculate-second habit: verify a rule or substitution against the ENTIRE given example before applying it. Puzzle, Blood Relations and Analytical Reasoning are the section's most time-hungry topics, rewarding a drawn structure (family tree, seating grid) over mental tracking. Syllogism has exactly two classic invalid patterns (All+Some, Some+Some) worth recognising instantly, and Venn Diagrams resolves almost entirely via the two- and three-set inclusion-exclusion formulas.

Chapters

Built to the RRB NTPC blueprint — notes, shortcuts, solved PYQ-style examples and practice in every chapter.

1AnalogiesAn analogy question asks you to find the same relationship twice. The entire skill is naming the first pair's relationship precisely enough that only one option can share it.⏱ 8 min read

2Alphabetical & Number SeriesSeries questions ask you to find the rule generating a sequence. The fastest approach is always to check the differences between consecutive terms first — most series reveal their pattern there.⏱ 8 min read

3Coding-DecodingCoding-decoding hides a simple, consistent rule behind an unfamiliar-looking transformation. Find the rule using the given example, then apply it mechanically — the rule never changes mid-question.⏱ 8 min read

4Mathematical OperationsThese questions swap the meaning of familiar symbols and ask you to evaluate an expression using the new meanings. The only way to avoid error is to rewrite the entire expression with the substituted symbols before calculating anything.⏱ 7 min read

5SyllogismA syllogism conclusion must follow with certainty from the given statements alone — not from real-world plausibility. The fastest reliable check is drawing a Venn diagram for every possible arrangement the statements allow.⏱ 9 min read

6PuzzlePuzzles are solved by fixing the most restrictive clue first and working outward — not by trying every clue in the order it was given. A blank grid or line filled in step by step beats mental tracking every time.⏱ 9 min read

7Data SufficiencyData sufficiency never asks you to find the actual answer — only to decide whether enough information exists to find it. Solving the problem fully is a common, time-wasting habit this chapter is built to break.⏱ 8 min read

8Statement-ConclusionA conclusion follows only if it's forced by the statement alone, with no outside knowledge or assumption added. The habit to break here is accepting a conclusion because it sounds reasonable, not because the statement actually proves it.⏱ 8 min read

9Blood RelationsBlood relation puzzles are solved by drawing a family tree as each clue is read, never by tracking relationships mentally. A single missed generation level is the most common source of error.⏱ 8 min read

10DirectionsDirection problems are solved by plotting each move on a mental (or drawn) grid, tracking position and facing direction separately. The final answer is almost always a straight-line distance and direction back to the start, not the total distance walked.⏱ 8 min read

11Analytical ReasoningThis chapter covers position-counting in a row, classification (finding the item that breaks a shared rule), and input-output machine problems — three distinct skills unified by the same discipline of working step by step rather than jumping to an answer.⏱ 8 min read

12Venn DiagramsVenn diagram questions are counting problems in disguise. The inclusion-exclusion formula handles overlap correctly every time — the recurring trap is double-counting the overlap or forgetting to subtract it at all.⏱ 8 min read

Topic-wise weightage in RRB NTPC

Expected question counts from previous-year paper analyses. Topics with an arrow already have a full chapter.

Topic	CBT 1 — Mathematics, Reasoning, GA Q	Priority
Analogies	~3	Very high
Alphabetical & Number Series	~3-4	Very high
Coding-Decoding	~3	High
Mathematical Operations	~2-3	High
Syllogism	~2	Medium
Puzzle	~2-3	High
Data Sufficiency	~2	Medium
Statement-Conclusion	~2	Medium
Blood Relations	~2	High
Directions	~2	Medium
Analytical Reasoning	~2	High
Venn Diagrams	~2	Medium