Letter Series Reasoning is a sequence of letters often asked in various competitive exams to evaluate a candidate’s logical thinking. These letter sequences follow particular patterns to challenge candidates to figure out the hidden logic behind them and describe a possible future event following the next letters. The logical Series patterns can differ, including any order, number-based positions in the alphabet, sequences, or changes based on letter positions.
In logical reasoning, a number and letter series is a sequence of numbers and letters that follow specific rules to calculate each term in the series. These rules can be based on mathematical operations or the alphabetical order of the letters. A series of numbers, letters, or both will be given in logical reasoning questions, with one term missing. The task is to identify the missing terms or terms that will satisfy the pattern of the series. Here are some examples of different types of series:
Number series: A series of numbers arranged in a specific order, such as 2, 3, 4, 5, 6.
Alphabet series: A series of letters that follow a specific pattern, such as B, D, F, H, J.
Alphanumeric series: A series of numbers and letters, such as a2b, b3c, c4d, d5e, e6f.
SCD, TEF, UGH, _, WKL
a) CMN b) UJI c) VIJ d) IJT
Correct Answer: c
In this letter series, each letter is shifted one position forward in the English alphabet. Starting with “SCD,” we have:
S + 1 = T
C + 1 = D
D + 1 = E
Continuing this pattern:
U + 1 = V
G + 1 = H
So, the missing term is “VIJ.”
B2CD, __, BCD4, B5CD, BC6D
a) B2C2D b) BC3D c) B2C3D d) BCD7
Correct Answer: c
In this letter and number series, the pattern is as follows:
The letter “B” appears at the beginning of each term.
The number represents a sequential count starting from 2 and increasing by 1 with each term.
The letters “C” and “D” appear in each term.
So, the missing term would be “B2C3D” as it continues the pattern.
DFH, HJL, LNP, _, TVX
a) DTV b) NRT c) RQS d) PRT
Correct Answer: d
In this letter series, each letter is shifted two positions forward in the English alphabet, and the next letter is added. Starting with “DFH,” we have:
D + 2 = F
F + 2 = H
H + 2 = J
Continuing this pattern:
P + 2 = R
R + 2 = T
So, the missing term is “PRT.”
ACE, GIK, MOQ, _, UYK
a) ACG b) WSK c) EIS d) OPS
Correct Answer: b
In this letter series, each letter is shifted two positions forward in the English alphabet, and the next letter is subtracted. Starting with “ACE,” we have:
A + 2 = C
C – 2 = A
E + 2 = G
Continuing this pattern:
M + 2 = O
O – 2 = M
Q + 2 = S
So, the missing term is “WSK.”
BDF, FGI, JKL, _, PTV
a) NMN b) NMO c) NOP d) OPM
Correct Answer: c
n this letter series, each letter is shifted three positions forward in the English alphabet, and the next letter is added. Starting with “BDF,” we have:
B + 3 = E
D + 3 = G
F + 3 = I
Continuing this pattern:
J + 3 = M
L + 3 = O
P + 3 = S
So, the missing term is “NOP.”
KLM, NOP, QRQ, TUT, _
a) WVW b) XYZ c) YZY d) ABC
Correct Answer: a
In this letter series, each letter is shifted one position forward in the English alphabet, and the next letter is repeated. Starting with “KLM,” we have:
K + 1 = L
L, M
M + 1 = N
N, O, P
P + 1 = Q
Q, R, Q
R + 1 = S
S, T, U, T
Continuing this pattern;
T + 1 = U
U, V, W
W + 1 = X
X, Y, Z
So, the missing term is “WVW.”
ACE, BDF, EHK, FIL, _
a) HMP b) JOM c) JOP d) JMN
Correct Answer:
In this letter series, each letter is shifted one position forward in the English alphabet, and the next letter is skipped. Starting with “ACE,” we have: c
A + 1 = B
C, D, E
E + 1 = F
H, I, K
I + 1 = J
L, M, O
Continuing this pattern:
O + 1 = P
So, the missing term is “JOP.”
PQ, RS, UV, XY, __
a) AC b) ZA c) AB d) BC
Correct Answer: b
In this letter series, each pair of letters represents consecutive letters in the English alphabet. Starting with “PQ,” we have:
P, Q
R, S
U, V
X, Y
Continuing this pattern:
Z, A
So, the missing term is “ZA,” representing consecutive letters in the English alphabet.
KL, MN, OP, RS, __
a) VW b) YZ c) WX d) XT
Correct Answer: a
In this letter series, each pair of letters represents consecutive letters in the English alphabet. Starting with “KL,” we have:
K, L
M, N
O, P
Q, R
Continuing this pattern:
S, T
U, V
So, the missing term is “VW.”
ACEG, DFHJ, EIKL, __, GMPR
a) HNMQ b) FIMS c) FIMT d) HNLR
Correct Answer: c
n this letter series, each letter is shifted one position forward in the English alphabet, and the next letter is skipped. Starting with “ACEG,” we have:
