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Letter Series Questions

Practice 100 Letter Series questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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100
Total Questions
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14
Easy
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86
Medium
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0
Hard
Practice by Exam:General Intelligence and Reasoning(51)General Intelligence & Reasoning(36)General Intelligence(9)Reasoning(2)Mental Ability(1)Reasoning Ability(1)

About letter series — practice questions, PYQs & concepts

letter series is a frequently-tested topic on General Intelligence and Reasoning, General Intelligence & Reasoning, General Intelligence. ExamTest.live currently lists 100 letter series questions spanning previous-year papers from 2026 to 2026, each with worked solutions and a step-by-step explanation. Use the filters on this page to focus on a specific exam, difficulty level or year — every answer key is free, no sign-up required.

letter series weight in competitive exams

Across our letter series question bank, the largest sources are General Intelligence and Reasoning (51), General Intelligence & Reasoning (36), General Intelligence (9), Reasoning (2) and Mental Ability (1). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 14 easy letter series questions are available — build fluency before moving up.
  • Target weak years: Use the year filter to focus on the most recent 2026 paper or older PYQs you have not attempted.
  • Time yourself: Every question shows the average solve time so you can benchmark your speed against other students.
  • Read every explanation: Even on questions you got right — the explanation often surfaces a faster approach you can reuse.

All Letter Series Questions(1–100 of 100)

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Q1mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
54% accuracy
Select the combination of letters, that when sequentially placed in the blanks of the given series, will complete the series.
Z _ S M _ Q _ M Z Q _ M _ Q _ M
Q2mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
38% accuracy
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
u _ p s _ z _ m p _ d _ u _ p s _ z
Q3mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
25% accuracy
Select the combination of letters that when sequentially placed in the blanks of the given series, will complete the series.
Q4mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
50% accuracy
Select the combination of letters that when sequentially placed from left to right in the blanks of the given series will complete the letter series.
Q5mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
50% accuracy
Select the correct option that will fill in the blank and complete the series.LM, QR, VW, ______
Q6mediummcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
CO_ _ G_C _ E_E_OL _GE
Q7mediummcqGeneral Intelligence and ReasoningSSC CGL2026
50% accuracy
Select the option that represents the letters that, when sequentially placed from left to right in the following blanks, will complete the letter series.
Z _ _ O _ _ E _ _ F _ E M _ F
Q8mediummcqMental AbilityUP Police Constable2026
50% accuracy
What is the next letter?
Q9mediummcqGeneral Intelligence and ReasoningSSC CGL2026
50% accuracy
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
L _ _ L _ M _ L _ _ M _
Q10mediummcqReasoningPractice Paper2026
0% accuracy
Find the missing term in the following series:
Q11mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
Which letter cluster will replace the question mark () to complete the given series?
CHO, DIP, EJQ, ?
Q12mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.AGMST, CIOUV, EKQWX, ?
Q13easymcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
Which of the following letter-clusters will replace the question mark (?) in the given series?BCDA, FGHE, JKLI, ?, RSTQ
Q14easymcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
Which of the following letter-clusters will replace the question mark (?) in the given series?EFCD, GHEF, IJGH, ?, MNKL
Q15mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
Which of the following terms will replace the question mark (?) in the given series?WGZC, TJVG, ?, NPNO, KSJS
Q16mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
Which letter cluster will replace the question mark () to complete the given series?
HEWC, KIRI, ?, QQHU, TUCA
Q17easymcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
100% accuracy
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
VQL, RMH, NID, JEZ, ?
Q18mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
Which letter cluster can replace the question mark () to complete the given series?
FDKI, GCMG, ?, IAQC
Q19mediummcqReasoningMock Test2026
0% accuracy
Complete the given series:
Q20mediummcqGeneral IntelligenceSSC Selection Post 20212026
0% accuracy
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
ILP, KHV, MDB, OZH, ?
Q21mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
C _ C _ S _ C _ _ C _ _
Q22mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
_ NE CIN _ C _ M
Q23easymcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
100% accuracy
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
K_TGB_LTG_KL_GBKLT_B
Q24mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Select the option that represents the letters that when sequentially placed in the blanks below will complete the letter series.
U _ G _ F _ K _ M G _ F N _ U _ G
Q25mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
cc_d_ch_c_h _ch
Q26mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which of the following letter-clusters will replace the question mark (?) in the given series?
FKAC, GLCE, HMEG, ?, JOIK
Q27mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
OTE, PUF, QVG, RWH, ?
Q28mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
TJF, RMH, PPJ, NSL, ?
Q29mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
G _ I N G G O _ N _ G _ I N _ G O I _ _
Q30mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which of the following letter-clusters will replace the question mark (?) in the given series?
ABZY, CDXW, EFVU, ?, IJRQ
Q31mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
Select the correct option that will fill in the blank and complete the series.
AEI, EIO, IOU, ______
Q32mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
_cb_a_b_a_b_ _c_da
Q33mediummcqGeneral Intelligence & ReasoningCompetitive Exam2026
The series is based on the repetition of a meaningful English word consisting of letters. Identify the word and fill in the missing letters accordingly:
\text{_LAN_P_AN_PLA_EPL_N_}
Q34mediummcqGeneral Intelligence & ReasoningCompetitive Exam2026
Analyze the given letter series carefully. Each letter in the group follows a consistent pattern of shifting forward by a fixed number of positions in the alphabet (with wrap-around after Z). Identify the missing group based on this pattern:
Q35mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
BYE, CVG, ERI, ?, LGM
Q36mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Select the option that represents the letters that, when sequentially placed from left to right in the blanks, will complete the letter series.
_ c b _ _ a mc c _ e a a _c c _ e _ _m
Q37mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Which letter-cluster will replace the question mark (?) to complete the given series?
FKSN, HMQL, JOOJ, ?, NSKF
Q38mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Which letter-cluster will replace the question mark (?) to complete the given series?
RFTL, ?, VNLH, XRHF, ZVDD
Q39mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which of the following letter-clusters will replace the question mark (?) in the given series?
XJPC YLOA ZNNY APMW ?
Q40mediummcqReasoning AbilityPractice Test2026
If the word 'SERENDIPITY' is written as 'TDSDOEHQHUZ' and the word 'GLABELLA' is written as 'HMZCDMMZ' in a certain code language, then for the word 'INTERROBANG', what will be the seventh letter from the right after coding?
(Note: If a letter goes beyond Z, continue from A, and if it goes before A, continue from Z.)
Q41mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Which of the following terms will replace the question mark (?) in the given series?SOWJ, QPUK, OQSL, ?, KSON
Q42easymcqGeneral Intelligence & ReasoningSSC CGL2026
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
EIL, QUX, CGJ, ?
Q43mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Select the combination of letters that when sequentially placed from left to right in the blanks of the given series will complete the letter series.
A _ _ O U A E I _ _ A _ I _ U A E _ O _
Q44easymcqGeneral Intelligence and ReasoningSSC CGL2026
According to the series given below, fill in the blank with a suitable letter that would satisfy the series.Z, B, D, F, H, ____
Q45easymcqGeneral Intelligence & ReasoningMock Test2026
Which of the following letter-clusters will replace the question mark (?) in the given series?IQAF, JRBG, KSCH, ?, MUEJ
Q46mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
_ A T _ R L A _ E R L _ _ E _ _ A _ E R
Q47easymcqGeneral Intelligence & ReasoningMock Test2026
Which of the following terms will replace the question mark (?) in the given series?JPNH, IRMI, HTLJ, GVKK, ?
Q48mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the option that is related to the fifth letter cluster in the same way as the second letter cluster is related to the first letter cluster and the fourth letter cluster is related to the third letter cluster.
SCATTER: TBBSUDS :: RESPECT: SDTOFBU :: SUCCESS: ?
Q49mediummcqGeneral Intelligence & ReasoningUP Police Constable Re-Exam (23 Aug 2024 Shift 2)2026
Answer the question according to the letter series given below:


Which two neighbours in the given arrangement are farthest in the alphabetical order?
Q50easymcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.CZP, HWQ, MTR, RQS, ?
Q51mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
Which letter cluster can replace the question mark (?) to complete the given series?
Q52mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the letter from among the given options that can replace the question mark (?) in the following series.
Y, W, T, P, K, ?
Q53mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Four letter clusters have been given out of which three are alike in some manner, while one is different. Choose the odd one.
Q54mediummcqGeneral Intelligence & ReasoningPractice Test2026
Identify the odd one from the following.
Q55mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
Which of the following terms will replace the question mark () in the given series?
AFM, DIP, GLS, ?
Q56easymcqGeneral Intelligence and ReasoningCompetitive Exam Practice2026
Select the option that will correctly replace the question mark (?) in the series.
PRL, QPM, RNN, SLO, ?
Q57mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
Which letter cluster will replace the question mark () to complete the given series?
TWEZ, XBYG, ?, FLMU, JQGB
Q58mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the correct option that will fill in the blank and complete the series.
dmt,fkv,ihy,mdc,……
Q59mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
P_QU_V_T_URVPTQ_R_P_QU_V
Q60mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
Which of the following letters will sequentially replace the question marks () in the given series?
G, Z, I, X, K, V, ?, ?
Q61easymcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.NYQ, KWP, HUO, ESN, ?
Q62mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Select the option that represents the letters that, when sequentially placed from left to right in the following blanks, will complete the letter-series.
Z _ C _ B Z X _ _ B _ X C V _ Z _ _ V B
Q63mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which letter-cluster will replace the question mark (?) to complete the given series?
ZVFM, XRJO, ?, TJRS, RFVU
Q64mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
EIM, QUY, CGK, ?
Q65mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
\text{ABZ, BCY, CDX, DEW, \_\_\_\_\_\_\_\_}}
Q66mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which of the given letter-clusters will replace the question mark (?) in the following series?
UDPJ, YHTN, CLXR, ?, KTFZ
Q67mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
According to the series given below, fill in the blank with a suitable letter that would satisfy the series.
\text{Z, A, Y, B, X, C, \_\_\_\_\_\_\_\_}}
Q68mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
Which letter cluster can replace the question mark (?) to complete the given series?
Q69mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which letter cluster will replace the question mark (?) to complete the given series?
ABCD, EEEE, ?, MKIG, QNKH
Q70mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
Which letter-cluster will replace the question mark (?) to complete the given series?
XSMP, WTKR, VUIT, ?, TWEX
Q71mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
S A _ C_ _ S _ D _ A T _ _ D C A _ S _ DC _ T
Q72mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the combination of letters that when sequentially placed in the blanks of the given series, will complete the series.
_ww_xw_xx_wx_wwx
Q73mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
Which of the following terms will replace the question mark (?) in the given series?
Q74mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
Which letter-cluster will replace the question mark (?) to complete the given series?
ETGW, ?, INOM, KKSH, MHWC
Q75mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Which letter-cluster will replace the question mark (?) to complete the given series?
EUGS, ?, HRJP, KOMM, OKQI
Q76mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which of the following terms will replace the question mark (?) in the given series?
WCKY, XENC, ?, ZITK, AKWO
Q77mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Which letter-cluster will replace the question mark (?) to complete the given series?
PCXL, ?, TKPH, VOLF, XSHD
Q78mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
P_L_Q_LM_P_M_Q_M
Q79mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Which of the following letter-clusters will replace the question mark (?) in the given series?IBDA, MFHE, QJLI, ?, YRTQ
Q80mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which of the following letter-clusters will replace the question mark (?) in the given series?
IJKL, MNOP, QRST, ?, YZAB
Q81easymcqGeneral Intelligence and ReasoningSSC CGL2026
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.AGMZ, CEOX, ECQV, ?
Q82mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
Select the combination of letters that when sequentially placed in the blanks of the given series, will complete the series.z _ k _ c q t _ u _ p c _ _ z u _ _ c q t
Q83mediummcqGeneral Intelligence & ReasoningMock Test2026
Select the option that represents the letters that, when sequentially placed from left to right in the following blanks, will complete the letter-series.P_ SH_BK_HPB_S_PB _H
Q84mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Select the combination of letters that when sequentially placed in the blanks of the given series, will complete the series.
yz_zx_xyx_z_zxzx
Q85mediummcqGeneral Intelligence & ReasoningMock Test2026
Select the option that represents the letters that, when sequentially placed in the blanks below, will complete the letter-series.kr_om_kry_mt_ _yom_kryo_t
Q86mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
Which letter cluster will replace the question mark (?) to complete the given series?
Q87mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
P _ P _ _ B _ _ P B _ _
Q88mediummcqGeneral Intelligence & ReasoningSSC CGL2026
Select the option that represents the letters that when sequentially placed in the blanks below will complete the letter series.
S _ P _ _ G _ I S G _ I _ _ P I
Q89mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
Which letter cluster will replace the question mark (?) to complete the given series?
SVGQ, OCWD, ?, GQCD, CXSQ
Q90mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Select the correct option that will fill in the blank and complete the series.
T, R, P, N, ...., .......
Q91mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
Q92mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
JJ_K_LM_N_ _ O _ _ Q _ R _
Q93mediummcqGeneral Intelligence & ReasoningPractice Test2026
Select the term that will come next in the following series.
YCL,MQZ,_______,OSB
Q94mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
Which of the following terms will replace the question mark (?) in the given series?
Q95easymcqGeneral Intelligence and ReasoningExam Paper2026
If the sequence of letters is A, F, K, P, ___, what comes next ?
Q96mediummcqGeneral Intelligence and ReasoningCompetitive Exam2026
Answer the question according to the letter series given below.


Which two neighbours in the given arrangement are farthest in the alphabetical order?
Q97mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.NEURO_ CNEUR ICNEU TICNE _OTIC

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Q98mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
S O _ T _ S _ F _ Y _ O F T _ _ O F T Y
Q99easymcqGeneral Intelligence & ReasoningStaff Selection Commission2026
Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
Q100mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which of the following letter-clusters will replace the question mark (?) in the given series?
PTXL, OSWK, NRVJ, ?, LPTH

Frequently Asked Questions

How many Letter Series questions are on ExamTest.live?▼
We have 100 Letter Series questions spread across 1 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Letter Series MCQs free?▼
Yes. All Letter Series questions, answers, and explanations on ExamTest.live are completely free. No account or subscription required.
Which exams include Letter Series questions?▼
Letter Series questions are commonly asked in General Intelligence and Reasoning, General Intelligence & Reasoning, General Intelligence, Reasoning, Mental Ability. You can filter by exam using the links above.
How do I practice Letter Series questions effectively?▼
Start with easy questions to build confidence, then tackle medium and hard ones. Use the filter buttons to sort by difficulty. Reveal the answer only after attempting each question, and read the explanation thoroughly.