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RRB NTPC Logical Reasoning Questions
Practise logical reasoning (reasoning) for the RRB Non-Technical Popular Categories Examination: 10 multiple-choice questions, each with the correct answer and a worked explanation. Click an option to check it, or “New questions” for another set.
Logical Reasoning practice
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Q1.If LAMP is coded as MBNQ, how is DOG coded?
Show answer & explanation
Answer: C — EPH
Each letter moves 1 place forward in the alphabet (LAMP → MBNQ), so DOG → EPH.
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Q2.Which number is the odd one out: 19, 49, 51, 69?
Show answer & explanation
Answer: A — 19
49, 69, 51 are composite; 19 is prime.
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Q3.Which number is the odd one out: 17, 21, 43, 59?
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Answer: A — 21
17, 43, 59 are prime; 21 is composite (21 = 3 × 7).
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Q4.Ravi walks 7 m north, turns right and walks 7 m, then turns right again and walks 1 m. How far is he from the start?
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Answer: A — 9.22 m
Net: 6 m north and 7 m east. Distance = √(6² + 7²) = 9.22 m.
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Q5.What is the angle between the hour and minute hands of a clock at 2:30?
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Answer: D — 105°
Angle = |30H − 5.5M| = |30×2 − 5.5×30| = 105°.
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Q6.Find the next letter: A, D, G, J, ?
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Answer: A — M
The letters advance by 3 each time (skip 2).
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Q7.What day of the week was 10 October 1991?
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Answer: C — Thursday
Using odd days (or Zeller’s rule), 10 October 1991 falls on a Thursday.
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Q8.If PLAN is coded as TPER, how is LAMP coded?
Show answer & explanation
Answer: D — PEQT
Each letter moves 4 places forward in the alphabet (PLAN → TPER), so LAMP → PEQT.
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Q9.If STAR is coded as UVCT, how is CAT coded?
Show answer & explanation
Answer: D — ECV
Each letter moves 2 places forward in the alphabet (STAR → UVCT), so CAT → ECV.
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Q10.Ravi walks 7 m north, turns right and walks 9 m, then turns right again and walks 2 m. How far is he from the start?
Show answer & explanation
Answer: A — 10.3 m
Net: 5 m north and 9 m east. Distance = √(5² + 9²) = 10.3 m.
How to approach logical reasoning questions
For coding questions write the letter positions (A = 1 … Z = 26). For directions, draw axes and track each turn. Clock angle = |30H − 5.5M|. Calendar: count odd days.
About RRB NTPC
RRB Non-Technical Popular Categories Examination — conducted by Railway Recruitment Boards (RRB). Recruits clerks, station masters, goods guards and other non-technical posts for Indian Railways.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
RRB NTPC practice topics
| Topic | Section | Question source |
|---|---|---|
| Number System & Simplification | Quantitative aptitude | Calculated (new numbers every set) |
| Percentages | Quantitative aptitude | Calculated (new numbers every set) |
| Time, Work & Pipes | Quantitative aptitude | Calculated (new numbers every set) |
| Logical Reasoning | Reasoning | Calculated (new numbers every set) |
| Indian Polity, History & Geography | General awareness | Question bank |
| Physics | Science | Calculated + question bank |