Three of the following four letter cluster pairs are alike in a certain way and so form a group. Which letter cluster pair does not belong to that group?

1. A

   FG-IJ

2. B

   RS-UV

3. C

   LM-QP

4. D

   AB-DE

Appeared in: DSSSB October 2024

Explanation

• The option LM-QP is the correct answer as it is the only one that deviates from the established pattern.
• The pattern followed by the other three options is: two consecutive letters, followed by a gap of one letter, and then the next two consecutive letters (e.g., A, B -> skip C -> D, E).
• LM-QP breaks this pattern by having a gap of three letters (N, O, P) after LM.
• Furthermore, the second pair of letters in LM-QP is in reverse alphabetical order (Q, P), unlike the other options where the letters are in forward consecutive order.

Why Other Options Were Wrong

• Option A: This option follows the established pattern. F and G are consecutive, one letter (H) is skipped, and the next two letters (I and J) are consecutive.
• Option B: This option follows the established pattern. R and S are consecutive, one letter (T) is skipped, and the next two letters (U and V) are consecutive.
• Option D: This option follows the established pattern. A and B are consecutive, one letter (C) is skipped, and the next two letters (D and E) are consecutive.

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Clinical Relevance

• Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Logical Reasoning: Odd One Out in Letter Clusters as background academic context rather than a clinical decision trigger.
• This type of logical reasoning question assesses analytical and pattern-recognition skills, which are foundational for problem-solving in various professional fields, including nursing.
• While not a clinical topic, these questions are common in the General Intelligence or Reasoning sections of nursing and other competitive recruitment exams.
• Developing the ability to quickly identify patterns and anomalies helps in clinical data interpretation, such as recognizing trends in vital signs or lab results.

How to Approach the Question

• First, identify the task: you need to find the letter cluster pair that does not follow the same rule as the other three.
• Analyze the first option (FG-IJ) to determine a potential pattern. Observe that F and G are consecutive letters. Then, the letter H is skipped. After the skip, I and J are also consecutive.
• Formulate the rule: Two consecutive letters, skip one letter, then the next two consecutive letters.
• Test this rule against the remaining options.
• Check RS-UV: R, S (consecutive) -> skip T -> U, V (consecutive). This fits the rule.
• Check AB-DE: A, B (consecutive) -> skip C -> D, E (consecutive). This also fits the rule.

Concept Tested & Keywords

• Concept Tested: Logical Reasoning: Odd One Out in Letter Clusters
• Stem keywords: letter cluster pairs, alike, form a group, does not belong
• Lead-in keywords: Which, does not belong
• Negative lead-in flag: This question asks to identify the option that does NOT fit the pattern.

Question ID

Q2U6Zcrq6D2wH-UfO97onK

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