Word Series in Logical Reasoning UHS MDCAT

Word series questions test a candidate’s ability to identify patterns or relationships between elements in a sequence. These elements can include numbers, alphabets, symbols, or combinations thereof. Based on the terms and structure of the series, word series can be classified into the following types:


1. Numeric or Number Series

  • Definition: A series where numbers are arranged in a specific sequence based on a logical relationship.
  • Example:
    2,4,6,8,10,….. (Each term increases by 2).
  • Variations:
    • Ascending or Descending Order (e.g., 10,9,8,7).
    • Arithmetic Progression (AP): 3,6,9,12,
    • Geometric Progression (GP): 2,4,8,16
    • Mixed Patterns (e.g., 2,3,6,11,18

2. Alphabet Series

  • Definition: A sequence of letters arranged in a specific pattern.
  • Example:
    A,C,E,G,I (Skipping one letter each time).
  • Variations:
    • Sequential Order (e.g., A,B,C,D,E.)
    • Reversed Order (e.g., Z,Y,X,W.)
    • Skipped Letters (e.g., B,D,F,H.)
    • Mixed Capitalization (e.g., A,b,C,d.)

3. Alphanumeric Series

  • Definition: A combination of alphabets and numbers in a series that follows a specific pattern.
  • Example:
    A1B,B2C,C3D,D4E(Alphabet and number progression).
  • Variations:
    • Fixed Format (e.g., X1,Y2,Z3).
    • Alternating Patterns (e.g., A1,2B,C3).
    • Increasing or Decreasing Digits (e.g., M5,N4,O3).

4. Pattern Series and Sequences

  • Definition: Identifying missing elements or patterns in a series based on specific rules.
  • Example:
    AA,BB,CC,DD, ? (Pattern: Repeated letters in alphabetical order).
  • Variations:
    • Alternating Patterns (e.g., A,1,B,2,C,3).
    • Repeated Elements (e.g., AAA,BBB,CCC).
    • Increasing or Decreasing Length (e.g., AB,ABC,ABCD).

6. Combined Series

  • Definition: A series combining elements from two or more types (numbers, alphabets, symbols).
  • Example:
    1A,2B,3C,4D1A, 2B, 3C, 4D (Combination of numbers and alphabets).
  • Variations:
    • Number and Symbol (e.g., 1#, 2@, 3%).
    • Alphabet and Symbol (e.g., A$, B%, C&).
    • Triple Combination (e.g., 1A$, 2B%, 3C&).

7. Palindrome

A palindrome is a word, phrase, number, or sequence of characters that reads the same backward as forward, ignoring spaces, punctuation, and capitalization. Examples include “radar,” “level,” and “121.”


Sample Questions

20 Questions Relating to Word Series


1. Number Series

  1. What comes next in the series: 2, 4, 8, 16, ___?
    a) 20
    b) 24
    c) 32
    d) 64
    Answer: c) 32
  2. Identify the missing number: 1, 3, 6, 10, ___, 21.
    a) 12
    b) 15
    c) 18
    d) 20
    Answer: b) 15
  3. What comes next in the series: 121, 144, 169, 196, ___?
    a) 225
    b) 256
    c) 289
    d) 324
    Answer: a) 225

2. Alphabet Series

  1. What comes next in the series: B, D, F, H, ___?
    a) J
    b) K
    c) L
    d) M
    Answer: a) J
  2. Complete the series: A, Z, B, Y, C, X, ___?
    a) D
    b) E
    c) W
    d) V
    Answer: a) D
  3. What comes next: L, M, N, O, ___?
    a) Q
    b) P
    c) R
    d) T
    Answer: b) P

3. Alphanumeric Series

  1. What comes next in the series: A1, B2, C3, D4, ___?
    a) E5
    b) F6
    c) E6
    d) G7
    Answer: a) E5
  2. Identify the missing term: 2A, 4B, 6C, 8D, ___?
    a) 10E
    b) 10F
    c) 12E
    d) 14G
    Answer: a) 10E
  3. Complete the series: A2B, B3C, C4D, ___?
    a) E5F
    b) D5E
    c) F6G
    d) G7H
    Answer: b) D5E

4. Pattern Series

  1. What comes next in the series: AA, AB, BB, BC, ___?
    a) CC
    b) CD
    c) AC
    d) CB
    Answer: a) CC
  2. Complete the sequence: AB, CD, EF, GH, ___?
    a) IJ
    b) HI
    c) KL
    d) MN
    Answer: a) IJ
  3. Identify the next term: 1, A, 2, B, 3, C, ___?
    a) 4, D
    b) D, 4
    c) 4, E
    d) C, 5
    Answer: a) 4, D

5. Palindromic Series

  1. Which of the following is a palindrome?
    a) RADAR
    b) LEVEL
    c) 121
    d) All of the above
    Answer: d) All of the above
  2. Complete the palindrome: “MAD___DAM.”
    a) I
    b) A
    c) D
    d) O
    Answer: b) A
  3. What comes next in the palindromic number series: 121, 131, 141, ___?
    a) 151
    b) 161
    c) 171
    d) 181
    Answer: a) 151
  4. Identify the palindromic word: “ROT___TOR.”
    a) A
    b) E
    c) O
    d) T
    Answer: c) O
  5. What comes next in the palindromic series: “A, B, A, C, A, ___?”
    a) D
    b) B
    c) A
    d) C
    Answer: a) D