The RRB NTPC 2025 CBT Exam includes a significant portion of reasoning ability, where the Alphabet Series is one of the most frequently asked topics. Mastering this topic can boost your reasoning score and help you secure a high rank in the exam. To help you prepare effectively, we have compiled 25 important Alphabet Series questions with answers in this RRB NTPC 2025 Alphabet Series Practice Set 2.
Why Practice Alphabet Series for RRB NTPC 2025?
- Improves pattern recognition skills
- Enhances logical thinking and problem-solving ability
- Boosts speed and accuracy in the reasoning section
- Helps in scoring high in the CBT exam
RRB NTPC 2025 Alphabet Series Questions & Answers CBT Exam Practice Set 2
Questions 1-5: Find the Missing Term in the Series
- AURT, BWSV, CYTX, ?
a) DZUY
b) DZUZ
c) DAUZ
d) DZUV - DI, GO, LU, OA, TG, ?
a) WM
b) WL
c) YM
d) UL - BOY, FMU, ?, NIM, RGI
a) ILR
b) IKR
c) JLQ
d) JKQ - PQ, RS, TU, VW, ?
a) YZ
b) XY
c) XZ
d) WZ - AB, CD, EF, GH, ?
a) HI
b) IJ
c) KL
d) JK
Answer to Questions 1-5: Find the Missing Term in the Series
- AURT, BWSV, CYTX, ?
Answer: (a) DZUY
Explanation: The pattern follows +2 letters for the first, +2 for the second, +2 for the third, and +2 for the fourth letter in each term. - DI, GO, LU, OA, TG, ? Answer: (b) WL
Explanation: The first letters follow the pattern: D → G (+3), G → L (+5), L → O (+3), O → T (+5), T → W (+3).
The second letters follow the pattern: I → O (+6), O → U (+6), U → A (+6), A → G (+6), G → L (+6). - BOY, FMU, ?, NIM, RGI Answer: (c) JLQ
Explanation: The pattern follows a shift in reverse alphabetical order:
B → F (+4), O → M (-2), Y → U (-4)
F → J (+4), M → L (-2), U → Q (-4) - PQ, RS, TU, VW, ? Answer: (b) XY
Explanation: The pattern follows consecutive pairs of letters:
P → R (+2), Q → S (+2), R → T (+2), S → U (+2), etc. - AB, CD, EF, GH, ? Answer: (b) IJ
Explanation: The pattern follows consecutive pairs of letters.
Questions 6-10: Find the Odd One Out
- E, V, H, S, K, Q, N, M
a) N
b) Q
c) K
d) M - AB, CD, EF, GH, JK
a) AB
b) CD
c) EF
d) JK - MN, OP, QR, ST, UV, WX, YZ, AB
a) WX
b) YZ
c) AB
d) MN - PQR, RST, STU, UVW, VWX
a) STU
b) UVW
c) VWX
d) RST - MO, NP, QR, ST, UV
a) MO
b) NP
c) QR
d) ST
Answer to Questions 6-10: Find the Odd One Out
- E, V, H, S, K, Q, N, M Answer: (a) N
Explanation: All letters except N maintain an alternating pattern. - AB, CD, EF, GH, JK Answer: (d) JK
Explanation: The first four pairs follow alphabetical order with a difference of 2 letters, but JK has a difference of 3. - MN, OP, QR, ST, UV, WX, YZ, AB Answer: (c) AB
Explanation: All other pairs consist of consecutive letters in alphabetical order, except AB. - PQR, RST, STU, UVW, VWX Answer: (c) VWX
Explanation: The first three letters in each set are consecutive, except VWX, which does not follow the same pattern. - MO, NP, QR, ST, UV Answer: (a) MO
Explanation: All other pairs follow a consecutive letter pattern, except MO.
Questions 11-15: Coding-Decoding Pattern in Alphabet Series
- In a coded language, “COULD” is written as “BNTKC”, and “MARGIN” is written as “LZQFHM”. How will “MOULDING” be written in this language?
a) CHMFINTK
b) NITKHCMF
c) LNTKCHMF
d) LNKTCMFHH - If “APPLE” is coded as “ZOKKC”, what is the code for “ORANGE”?
a) MQCLMC
b) NQCLNB
c) PQCMND
d) NQCKMC - If “TABLE” is written as “UZYVI”, how will “CHAIR” be written?
a) ZIVZP
b) ZIVYP
c) YIVYP
d) ZJUZP - If “CAT” is coded as “XZG”, how is “DOG” coded?
a) WVJ
b) XWI
c) WYJ
d) VWK - If “HOUSE” is written as “SLFXV”, what is the code for “TRAIN”?
a) GIZRM
b) GJZRL
c) GJYRM
d) HJZRM
Answer to Questions 11-15: Coding-Decoding Pattern in Alphabet Series
- “COULD” → “BNTKC”, “MARGIN” → “LZQFHM”. How will “MOULDING” be written? Answer: (c) LNTKCHMF
Explanation: Each letter is replaced by its previous alphabet. - “APPLE” → “ZOKKC”, code for “ORANGE”? Answer: (b) NQCLNB
Explanation: Each letter is replaced by a specific shifting pattern. - “TABLE” → “UZYVI”, code for “CHAIR”? Answer: (b) ZIVYP
Explanation: Each letter follows a unique shifting pattern. - “CAT” → “XZG”, code for “DOG”? Answer: (c) WYJ
Explanation: Each letter follows a different shifting pattern. - “HOUSE” → “SLFXV”, code for “TRAIN”? Answer: (b) GJZRL
Explanation: Each letter follows a reverse alphabetical sequence.
Questions 16-20: Completing the Series
- Complete the series: c_babb_cacccba_bbc_cccbab
a) cabb
b) cbaa
c) caab
d) cbba - Complete the series: ab abcbcdb_d_decdedefde_
a) ccff
b) cfcf
c) fccf
d) cccf - Complete the series: a acb_ca_cbb_aa_b
a) abcc
b) baca
c) bacc
d) abcc - Complete the pattern: ZX, WV, TS, QP, ?
a) NL
b) ON
c) LM
d) ML - Find the missing term: B, E, H, K, ?
a) M
b) N
c) O
d) P
Answer to Questions 16-20: Completing the Series
- c_babb_cacccba_bbc_cccbab Answer: (a) cabb
- ab abcbcdb_d_decdedefde_ Answer: (b) cfcf
- a acb_ca_cbb_aa_b Answer: (b) baca
- ZX, WV, TS, QP, ? Answer: (b) ON
Explanation: The pairs follow a decreasing pattern in the alphabet. - Find the missing term: B, E, H, K, ? Answer: (b) N
Explanation: The pattern follows +3 letters.
Questions 21-25: Logical Alphabet Sequences
- Which letter comes next? M, P, S, V, ?
a) Y
b) X
c) Z
d) A - If A = 1, B = 3, C = 5, D = 7, then what is the value of E + F + G?
a) 15
b) 17
c) 19
d) 21 - What is the 12th letter from the right in the English alphabet?
a) O
b) M
c) N
d) L - Which of the following follows the pattern: X, V, T, R, P, ?
a) N
b) O
c) M
d) L - Which option correctly replaces the question mark? A, D, I, P, ?
a) W
b) X
c) Y
d) Z
Answer to Questions 21-25: Logical Alphabet Sequences
- M, P, S, V, ? Answer: (a) Y
Explanation: The pattern follows +3 letters. - If A = 1, B = 3, C = 5, D = 7, then value of E + F + G? Answer: (c) 19
Explanation: The pattern follows odd numbers (E = 9, F = 11, G = 13 → 9 + 11 + 13 = 19). - What is the 12th letter from the right in the English alphabet? Answer: (b) M
Explanation: Counting backward from Z, M is the 12th letter. - Which follows the pattern: X, V, T, R, P, ? Answer: (a) N
Explanation: The pattern follows -2 letters. - A, D, I, P, ? Answer: (a) W
Explanation: The pattern follows square numbers (A=1², D=2², I=3², P=4², W=5²).
Final Thoughts
Practicing these RRB NTPC 2025 Alphabet Series Questions & Answers will help you boost your reasoning skills and improve your performance in the RRB NTPC CBT Exam 2025. Regular practice with such RRB NTPC reasoning practice sets for CBT Exam 2025 can enhance speed, accuracy, and confidence.
Stay tuned for more RRB NTPC 2025 Alphabet Series Practice Sets and mock tests for Alphabet Series and reasoning. Keep practicing and ace your RRB NTPC 2025 CBT Exam Preparation! 
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Also Read: RRB NTPC 2025 Alphabet Series Questions & Answers CBT Exam Practice
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