Are you preparing for the RRB NTPC 2025 exam and aiming for a top score in the Reasoning section? Get ready to challenge your brain with this set of 20 advanced-level (Level 5) reasoning questions curated specifically for high-scoring aspirants. These MCQs cover Odd One Out, Coding-Decoding, Missing Number, and Blood Relation – all crucial areas in competitive exams.
Each question is designed to push your logical thinking, pattern recognition, and problem-solving skills to the next level. Whether you’re solving for speed or accuracy, this set is perfect for fine-tuning your preparation.


Target RRB NTPC 2025, Ultimate Reasoning Practice MCQs
Q1.
Which of the following does not belong to the group?
A. 121
B. 169
C. 225
D. 289
E. 255
Q2.
Find the odd one:
A. Tulip
B. Rose
C. Jasmine
D. Lotus
E. Apple
Q3.
Select the odd one:
A. 2³ × 3
B. 3² × 2
C. 5² × 1
D. 7 × 4
E. 11 × 2
Q4.
Which one is the odd pair?
A. (3, 9)
B. (5, 25)
C. (7, 49)
D. (6, 36)
E. (9, 90)
Q5.
Choose the odd one out:
A. Monday
B. Tuesday
C. Thursday
D. Saturday
E. August
Also Read: RRB Group D Practice Set: Important Electrochemistry Questions with Answers (MCQ Format)
Q6.
If CONVERT is written as DPOSFUS, then how is MACHINE coded?
A. NBDIJOF
B. NBIDJOF
C. NBJDIPE
D. NCIDJOG
E. NBIDKOF
Q7.
In a certain code:
- RAISE → 813295,
- SIREN → 39254,
What is the code for SENIOR?
A. 352914
B. 395241
C. 352941
D. 394215
E. 392145
Q8.
If in a certain code, FISH = GJTI, and BONE = CPQF, then what is the code for MEAT?
A. NFBU
B. NFBT
C. NFCU
D. NGBU
E. NGBV
Q9.
In a certain language, STRONG is written as TSHROG. How will FIGHTS be written?
A. IGFTSH
B. GFITHS
C. IGFTHS
D. GIFTHS
E. HFTGSI
Q10.
If LIGHT is coded as 43289 and SIGHT as 93289, then what is the code for SLIGHT?
A. 943289
B. 934289
C. 932489
D. 932849
E. 943829
Q11.
Find the missing number:
6, 11, 21, 41, 81, ?
A. 161
B. 121
C. 151
D. 141
E. 171
Q12.
Find the missing number in the matrix:
A. 10
B. 11
C. 12
D. 13
E. 14
Q13.
Complete the series:
3, 6, 18, 72, 360, ?
A. 1260
B. 2160
C. 2520
D. 2880
E. 3240
Q14.
Find the missing number:
A. 4
B. 5
C. 6
D. 7
E. 8
Q15.
Find the missing number:
A. 8
B. 6
C. 4
D. 2
E. 0
Also Read: RRB NTPC (Undergraduate Level) Practice Set – General Awareness, Math & Reasoning
Q16.
Pointing to a photograph, a woman says, “He is the son of my mother’s only daughter.” How is the person related to the woman?
A. Son
B. Nephew
C. Brother
D. Cousin
E. Cannot be determined
Q17.
Rahul says, “The girl in the photo is the sister of the son of the only daughter of my grandmother.” How is the girl related to Rahul?
A. Sister
B. Cousin
C. Niece
D. Aunt
E. Cannot be determined
Q18.
A man says, “My mother’s husband’s only son is the father of your brother.” How is the man related to you?
A. Father
B. Uncle
C. Brother
D. Cousin
E. Grandfather
Q19.
If A is the father of B, and C is the mother of D. D is the son of B. How is A related to D?
A. Father
B. Uncle
C. Grandfather
D. Brother
E. Cousin
Q20.
A introduces B as the daughter of the only son of his father. How is B related to A?
A. Sister
B. Cousin
C. Niece
D. Daughter
E. Aunt
ANSWERS
Q1. E. 255 → Not a perfect square
Q2. E. Apple → All others are flowers
Q3. D. 7 × 4 = 28 → Others are perfect squares or products with square roots
Q4. E. (9, 90) → 9² = 81 ≠ 90
Q5. E. August → Others are weekdays
Q6. A. NBDIJOF → Each letter +1
Q7. C. 352941
Q8. A. NFBU
Q9. C. IGFTHS → Swap 1st & 2nd, 3rd & 4th, 5th & 6th
Q10. A. 943289
Q11. A. 161 → Each term ×2 -1
Q12. B. 11 → 5 + 11 = 16
Q13. D. 2880 → Pattern: ×2, ×3, ×4…
Q14. C. 6 → Diagonal pattern
Q15. B. 6 → Reverse square pattern
Q16. A. Son
Q17. A. Sister
Q18. A. Father
Q19. C. Grandfather
Q20. D. Daughter