4.LETTER GROUP SERIES
4.1 Alphabet Series
4.2 Letter Series
4.1 Alphabet Series
In this type of test, a letter series or a number-letter series is given. A candidate has to find out the missing series.
Example 1. DKM, FJP, HIS, JHV, ?
(A) HGY (B) IGZ (C) IGY (D) LGY
Answer with explanation (D) :
Hence, the correct answer is (D).
Example 2. Q1F, S2E, U6D, W21C, ?
(A) Y66B (B) Y88B (C) Z88B (D) Y44B
Answer with explanation (B) :
Hence, the correct answer is (B).
Example 3. AYD, BVF, DRH, ?, KGL.
(A) FMI (B) GMJ (C) HLK (D) GLJ
Answer with explanation (B) :
Hence, the correct alternative is (B).
Example 4. LPQ, NOS, PNU, RMW, ?
(A) TYL (B) TMY (C) YTL (D) TLY
Answer with exlanation (D) :
Hence, the correct alternative is (D).
Example 5. 3F, 6G, 11I, 18L, ?
(A) 21O (B) 25N (C) 27Q (D) 27 P
Answer with explanation is (D).
Hence, the correct alternative is (D).
Example 6. MN, LO, KP, JQ, IR, ?
Answer with explanation (C) :
Hence, the correct alternative is (C).
Example 7. CFL, EIK, GLJ, IOI, ?
Answer with explanation (A) :
Example 8. BY, IQ, NK, OJ, ?
(A) RF (B) TF (C) RE (D) SE
Answer with explanation (C) :
Hence, the correct alternative is (C).
Example 9. BCDB, CDDEC, DEEEFD, ?
(A) EFFFGE (B) EFFFFGF (C) EFFFFGE (D) FEEFGF
Answer with explanation (C) :
Hence, the correct alternative is (C).
Example 10. BF, CH, ? HO, LT.
(A) EM (B) EK (C) FJ (D) EL
Answer with explanation (B):
Hence, the correct alternative is (B).
Example 11. XDA, WED, VFG, UGJ, THM, ?
(A) JRQ (B) QKN (C) PLO (D) SIP
Answer with explanation (D) :
Hence the correct alternative is (D).
4.2 Letter Series
In this type of questions, a letter-series is given from which some of the letters are missing. The missing letters are given
their proper sequence in one of the alternative answers. The candidate has to find out the correct alternative.
Example 1- Letters of which of the alternative answers when placed at the blank place one after another will complete the given letter-series ?
(A) acba (B) bacb (C) caba (D) abba
Answer with explanation (A) :
By placing the letters of alternative (A) at the blank places one after another in the given letter series , we get
a a b b c c a a b b c c a a b b c c
Thus, we get that aa bb cc is repeated three times. Hence, series is formed, therefore, the corect alternative is (A).
Example 2- In the following letter-series some letters are missing. The missing letters are given in the proper sequence as one
of the alternatives. Find the correct alternative.
(A) abac (B) bcac (C) ccab (D) bbac
Answer with explanation (C) :
By placing the letters of the alternative (C) at the blank places one after another in the given letter-series, we get
a b c a b c a b c a b c a b c a b c
Thus, abc is repeated 6 times. Hence, the series is formed, therefore the correct alternative is (C).
Example 3 - In the following letter-series some letters are missing. The missing letters are given in the proper sequence as
one of the alternatives. Find the correct alternative.
(A) bcab (B) bbac (C) bbca (D) cabc
Answer with explanation (B) :
By placing the lettes of alternatives (B) at the blank places one after another in the given series, we get,
a b a b c b c b c a a b a b c b c b c a
Thus, a b a b c | b c b c a | a b a b c | b c b c a | series is formed. Therefore, the correct alternative is (B).
EXERCISE -I
Directions-(Q. 1 - 30) In each of the questions find out the group of letters in place of question in letter series.
1. BFJ, IMQ, PTX, ?
(A) XBF (B) XAE (C) WAE (D) WBF
2. EIO, IOU, OUA, ?
(A) UAI (B) UAE (C) AEI (D) EIO
3. CHM, MRW, WBG, ?
(A) FLP (B) FLQ (C) GLQ (D) GLP
4. EFI, FGJ, GHK, ?, IJM
(A) HIL (B) HIM (C) HIK (D) GHL
5. DG, GJ, JM, ?
(A) NP (B) MQ (C) MO (D) MP
6. PNR, QKQ, SHO, VEL, ZBH, ?
(A) EZC (B) EYC (C) DYB (D) FZB
7. BDO, CFR, DHN, EJS, ?
(A) FLM (B) FKM (C) FNM (D) FLN
8. 1SR, 2UO, 5WL, I6YI, ?
(A) 49 AF (B) 33BG (C) 65 AF (D) 65AG
9. A2E, B7D, D17B, G37Y, ?
(A) K87V (B) K67U (C) R57U (D) K77U
10. H3M, I5O, L9S, Q17A, ?
(A) X33Q (B) Z33P (C) X33P (D) W33R
11 . B0M, D1L, G1J, K2G, ?
(A) Q4C (B) P5C (C) P3C (D) P3B
12. 1BR, 2EO, 6HL, 15KI, ?
(A) 22NF (B) 31NF (C) 26NE (D) 28NF
13. UV3, VU8, XS15, AP24, ?
(A) DL35 (B) EL37 (C) DK37 (D) EL35
18. ABC, DEF, HIJ, MNO, ?
(A) STU (B) TUV (C) RST (D) QRS
19. MAD, OBE, SCH, YDM, ?
(A) HET (B) HES (C) GET (D) HEV
20. R Q O N L K I H ?
(A) FE (B) EF (C) GF (D) ED
21. A C D F G I J L
(A) LN (B) LO (C) NO (D) MO
22. E F H I K L N O
(A) QS (B) PQ (C) QR (D) RS
23. AZ, DW, GT, ?
(A) LS (B) IR (C) JQ (D) KQ
24. ab, bcd, cd, def, ef, ?
(A) fgh (B) efg (C) ghi (D) gih
25. F J H M J P L S N
(A) WQ (B) VP (C) WP (D) VQ
26. C G J N Q U X B
(A) FJ (B) FI (C) EH (D) EI
27. Z Y W T P K E X
(A) PG (B) RI (C) SJ (D) QI
28. B J Q W B F I K
(A) LM (B) LL (C) MN (D) NM
29. H J L N P R T V
(A) WY (B) YZ (C) XZ (D) XY
30. C B H G M L R Q
(A) VU (B) XW (C) WX (D) WV