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RRB Group D Reasoning — practice by topic

Browse 206 questions across 29 Reasoning topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Reasoning topics

Coding Decoding (55)Venn Diagrams (49)Analogy (46)Blood Relations (45)Analogies (44)Number Series (42)Number Series, Coding and Decoding and Odd Man Out (40)Calendar (28)Data Interpretation (27)Series (27)Direction Sense (24)Classification (23)Distance and Direction (23)Odd One Out (22)Coding and Decoding (21)Dice And Cubes (21)Floor Puzzle (21)Inequalities (21)Logical Reasoning (21)Mirror And Water Images (21)Reasoning & Aptitude (21)Seating Arrangements (21)Sets and Venn Diagrams (21)Syllogism (21)Syllogisms (21)Alphanumeric Series (16)Series Coding Relations (10)Letter Series (2)Number Analogy (1)

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5 : 24 :: 8 : ?Read the answer and worked solution →Find the next term: 2, 6, 12, 20, 30, ?Read the answer and worked solution →Facing south-east, you turn 45 degrees anticlockwise. Now facing:Read the answer and worked solution →In analogy questions, the symbol '::' between two pairs meansRead the answer and worked solution →

Worked practice questions

5 : 24 :: 8 : ?

  1. 81
  2. 63
  3. 48
  4. 56
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Correct answer: B. 63

Pattern: n² - 1. 5² - 1 = 24. 8² - 1 = 63.

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Find the next term: 2, 6, 12, 20, 30, ?

  1. 36
  2. 40
  3. 42
  4. 44
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Correct answer: C. 42

**Differences:** 4, 6, 8, 10 (increasing by 2). Next difference = 12. So 30 + 12 = 42. Formula: n(n+1) for n = 1..6.

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Facing south-east, you turn 45 degrees anticlockwise. Now facing:

  1. North-east
  2. South
  3. West
  4. East
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Correct answer: D. East

1. SE lies between south and east. 2. Turning 45 degrees anticlockwise from SE moves you towards east. 3. So you now face east. _Source: SSC CGL Reasoning (Direction Sense), standard PYQ patterns_

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