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Letter Series Questions

Practice 244 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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244
Total Questions
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17
Easy
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226
Medium
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1
Hard
Practice by Exam:General Intelligence and Reasoning(133)General Intelligence & Reasoning(85)General Intelligence(10)Reasoning(9)Mental Ability(3)Reasoning Ability(3)Mental Ability and Reasoning(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 244 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 (133), General Intelligence & Reasoning (85), General Intelligence (10), Reasoning (9) and Mental Ability (3). Click any exam chip above to drill down to that exam-specific question set.

How to use this page

  • Start easy: 17 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 244)

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Q1mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
39% 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
Q2mediummcqGeneral IntelligenceSSC Selection Post 2021 Matriculation Level2026
42% 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
Q3mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
43% 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 ReasoningSSC CGL2026
20% accuracy
In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_ n _ p _ n o _ m _ _ p
Q6mediummcqGeneral Intelligence and ReasoningSSC CGL2026
60% accuracy
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
ACE, BDF, CEG, ?
Q7mediummcqGeneral Intelligence and ReasoningSSC CGL2026
40% accuracy
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
ABC, PQR, DEF, STU, ?
Q8easymcqGeneral Intelligence & ReasoningSSC CGL2026
50% accuracy
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
NFP, MHM, LJJ, KLG, ?
Q9mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
50% accuracy
Select the option that represents the letters which when sequentially placed from left to right in the blanks below will complete the letter series.
L _ J _ G _ K _ H G _ K J H _ L _ _ H G
Q10easymcqGeneral Intelligence & ReasoningSSC CGL2026
75% accuracy
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
Y _ L _ S _ S _ E _ Y _ L _ S
Q11mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.DE, GI, KN, ?
Q12mediummcqGeneral Intelligence & ReasoningSSC CGL2026
33% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.FU, LO, RI, ?
Q13mediummcqGeneral Intelligence and ReasoningSSC CGL2026
33% 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 _
Q14mediummcqGeneral Intelligence and ReasoningSSC CGL2026
33% 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
Q15mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
0% accuracy
Which of the following letter-clusters will replace the question mark (?) in the given series?
XI, EE, LB, SZ, ?
Q16mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
0% accuracy
Which of the following letter-clusters will replace the question mark (?) in the given series?
ZG, BD, CX, EO, FC, ?

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Q17mediummcqGeneral Intelligence and ReasoningSSC CGL2026
67% 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
Q18mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
50% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
I, M, ?, U, Y
Q19mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
50% accuracy
In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
cd _ de _ dd _ ecdd _ e
Q20mediummcqMental AbilityUP Police Constable2026
50% accuracy
What is the next letter?
Q21mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
50% accuracy
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
OP, RS, VW, ?, GH
Q22mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
50% accuracy
Find out the odd word/letters/number/number pair from the given alternatives.
Q23mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
50% accuracy
Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?
j _ l _ j k _ m _ k l _
Q24mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
50% accuracy
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
FU, GT, HS, IR, ?
Q25mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
QR, VW, BC, ?
Q26mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
100% accuracy
Which letter cluster can replace the question mark (?) to complete the given series?
Q27mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
50% accuracy
Select the correct option that will fill in the blank and complete the series.LM, QR, VW, ______
Q28easymcqGeneral Intelligence & ReasoningStaff Selection Commission2026
50% 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.
Q29mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
50% accuracy
Which of the following terms will replace the question mark (?) in the given series?
Q30mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
100% accuracy
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
Q31mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
Which of the following terms will replace the question mark (?) in the given series?WGZC, TJVG, ?, NPNO, KSJS
Q32mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
CAE, FDH, IGK, ?
Q33mediummcqGeneral 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, ?
Q34easymcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
Which of the following letter-clusters will replace the question mark (?) in the given series?EFCD, GHEF, IJGH, ?, MNKL
Q35mediummcqReasoning AbilityGeneral Practice2026
0% accuracy
What should come in the place of (?) in the given series?
ACE, FGH, ?, PON
Q36mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
BB, DZ, GW, KS, ?
Q37mediummcqReasoningPractice Paper2026
0% accuracy
Find the missing term in the following series:
Q38mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
a_b_a_c_a_bc
Q39mediummcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
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.
ISLE : GNVL :: JUMP : ROXM :: KATE : ?
Q40mediummcqReasoningMock Test2026
0% accuracy
Complete the given series:
Q41mediummcqGeneral Intelligence and ReasoningSSC CGL2026
100% 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.
G _ _ A B G H I _ _ G _ I _ B _ H I _ B
Q42mediummcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_ k _ m _ k l _ j k _ m
Q43mediummcqGeneral Intelligence & ReasoningIndian Competitive Exam Prep2026
0% accuracy
Which out of the following letters should replace the question mark in the series?
A, D, G, J, M, ?
Q44mediummcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
PON, LKJ, GFE, ?
Q45mediummcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
RS, ZA, HI, ?
Q46mediummcqGeneral Intelligence & ReasoningSSC CGL2026
100% accuracy
In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
a _ c _ a _ c b _ c c b
Q47mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
100% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
WAX, YED, AIJ, CMP
Q48mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
100% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
UMP, SKN, QIL, OGJ, ?
Q49mediummcqGeneral Intelligence and ReasoningSSC CGL2026
100% accuracy
Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?
A _ B C _ B B C _ B B _
Q50mediummcqGeneral 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, ?
Q51mediummcqGeneral Intelligence & ReasoningSSC CGL2026
100% accuracy
In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
A_C_E_B_DE
Q52mediummcqGeneral Intelligence and ReasoningSSC CGL2026
0% accuracy
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
?, HI, OP, WX
Q53mediummcqGeneral 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 _ _
Q54mediummcqGeneral 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
Q55mediummcqGeneral Intelligence and ReasoningSSC CGL2026
100% accuracy
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
CFL, EIK, GLJ, IOI, _ _ _
Q56hardmcqGeneral Intelligence and ReasoningStaff Selection Commission2026
100% accuracy
Select the set of letters that, when sequentially placed in the blanks of the given letter series, will complete the letter series.
u _ q _ c _ u r _ z _ n _ r q _ c n
Q57mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
GHI,?, TUV, BCD
Q58mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
100% accuracy
Select the set of letters that, when sequentially placed in the blanks of the given letter series, will complete the letter series.
C R _ P _ _ T _ C _ T P
Q59mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
Which letter cluster will replace the question mark () to complete the given series?
HEWC, KIRI, ?, QQHU, TUCA
Q60mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
Which letter cluster will replace the question mark () to complete the given series?
CHO, DIP, EJQ, ?
Q61mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
100% accuracy
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
?, YZ, DE, JK
Q62easymcqGeneral 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
Q63mediummcqGeneral Intelligence and ReasoningSSC CPO 20242026
0% accuracy
Which letter cluster can replace the question mark () to complete the given series?
FDKI, GCMG, ?, IAQC
Q64mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
100% accuracy
Which of the following terms follows the trend of the given list?
AAAAAAA, BAAAAAA, BBBAAAA, BBBBAAA, ___
Q65mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
AY, CW, EU, ?
Q66easymcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
Which of the following letter-clusters will replace the question mark (?) in the given series?BCDA, FGHE, JKLI, ?, RSTQ
Q67mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
HI, MN, RS, ?
Q68mediummcqGeneral Intelligence & ReasoningCompetitive Exam Practice2026
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._ A A _ F _ A N F A _ _ _ A A N
Q69mediummcqGeneral Intelligence & ReasoningCompetitive Exam Practice2026
0% accuracy
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.A C _ E _ A _ D E F _ C D _ F
Q70mediummcqGeneral 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.
G _ _ D O _ K N _ O G K _ D _ G K _ _ O
A) K N D G N O N D
B) K N G N D O N D
C) K N G D N O G D
D) K N G D N O N D
Q71mediummcqGeneral Intelligence & ReasoningCompetitive Exam Practice2026
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.F _ L O R F W L _ R _ W _ O R F _ L O _
Q72mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
Which of the following letter-clusters will replace the question mark (?) in the given series?
UHS, OJQ, ILO, ENM, ?
Q73mediummcqGeneral 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.
_ P G _ _ M P _ _ A _ _ G F A
Q74mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
FW, JS, ?, RK, VG
Q75mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
0% accuracy
Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?
x_zz_xx_z_yx
Q76mediummcqGeneral 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.
b _ c _ d _ k b _ _ a _ e k b b _ a d _ k
Q77mediummcqGeneral Intelligence & ReasoningSSC CGL2026
0% accuracy
Which of the following letter-clusters will replace the question mark (?) in the given series?
RI, PK, LO, FU, XC, ?
Q78easymcqGeneral 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, ?
Q79mediummcqGeneral 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, ?
Q80mediummcqGeneral 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
Q81mediummcqGeneral 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
Q82mediummcqGeneral 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
Q83mediummcqGeneral 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 _ _
Q84mediummcqGeneral 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, \_\_\_\_\_\_\_\_}}
Q85mediummcqGeneral 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
Q86mediummcqGeneral 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, ?
Q87mediummcqGeneral 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, \_\_\_\_\_\_\_\_}}
Q88mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which of the following letter-clusters will replace the question mark (?) in the given series?
ABZY, CDXW, EFVU, ?, IJRQ
Q89mediummcqGeneral Intelligence & ReasoningStaff Selection Commission2026
Select the correct option that will fill in the blank and complete the series.
AEI, EIO, IOU, ______
Q90mediummcqGeneral 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
Q91mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which of the following letter-clusters will replace the question mark (?) in the given series?
FKAC, GLCE, HMEG, ?, JOIK
Q92mediummcqGeneral Intelligence and ReasoningStaff Selection Commission2026
Which of the following letter-clusters will replace the question mark (?) in the given series?
IJKL, MNOP, QRST, ?, YZAB
Q93mediummcqGeneral 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_}
Q94mediummcqGeneral 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:
Q95mediummcqGeneral 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
Q96mediummcqGeneral 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
Q97mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Which letter-cluster will replace the question mark (?) to complete the given series?
RFTL, ?, VNLH, XRHF, ZVDD
Q98mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Which letter-cluster will replace the question mark (?) to complete the given series?
FKSN, HMQL, JOOJ, ?, NSKF
Q99mediummcqGeneral 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
Q100mediummcqGeneral Intelligence and ReasoningSSC CGL2026
Which letter-cluster will replace the question mark (?) to complete the given series?
PCXL, ?, TKPH, VOLF, XSHD
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How many Letter Series questions are on ExamTest.live?▼
We have 244 Letter Series questions spread across 3 pages, covering easy, medium, and hard difficulty levels with detailed explanations.
Are Letter Series MCQs free?▼
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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.