Question

Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way and thus form a group. Which letter-cluster DOES NOT belong to that group? (Note: The odd one out is not based on the number of consonants/vowels or their position in the letter-cluster.)

• A. LOU
• B. BEK
• C. HKQ
• D. OIG

Answer 1

Answer:

D. OIG

Let’s check the pattern using alphabetical positions:

• LOU → L(12), O(15), U(21)
  Differences: +3, +6

• BEK → B(2), E(5), K(11)
  Differences: +3, +6

• HKQ → H(8), K(11), Q(17)
  Differences: +3, +6

• OIG → O(15), I(9), G(7)
  Differences: −6, −2

  Pattern:

In the first three clusters, letters increase by +3 and +6.
But OIG does not follow this pattern.

Final Answer:

OIG is the odd one out.