Based on the English alphabetical order, three of the following four letter-clusters are alike in a certain way: 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 components/vowels or their position in the letter-cluster.)

1. A

   GHE

2. B

   VYT

3. C

   EHC

4. D

   ZCX

Appeared in: DSSSB 13 August 2024

Explanation

• The pattern is determined by the numerical position of each letter in the English alphabet (A=1, B=2, etc.).
• In the cluster GHE, the letters correspond to the numbers 7, 8, and 5.
• The positional difference between G(7) and H(8) is +1.
• The positional difference between H(8) and E(5) is -3.
• This pattern of (+1, -3) is unique among the given options, making it the correct answer.

Why Other Options Were Wrong

• Option B: This option follows the common pattern shared by the majority of the group.
• Option C: This option follows the common pattern shared by the majority of the group.
• Option D: This option follows the common pattern shared by the majority of the group, including a wrap-around from the end of the alphabet to the beginning.

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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 - Alphabet Series Pattern Recognition as background academic context rather than a clinical decision trigger.
• While not a clinical question, the underlying skills of logical reasoning and pattern recognition are crucial for nurses.
• These skills are applied daily when interpreting trends in vital signs, analyzing lab results over time, and recognizing subtle changes in a patient's condition that might signal improvement or deterioration.
• What if? If a patient's blood pressure readings over three consecutive checks were 140/90 mmHg, 135/85 mmHg, and 130/80 mmHg, a nurse uses pattern recognition to identify a consistent downward trend. This helps in evaluating the effectiveness of an antihypertensive medication.

How to Approach the Question

• First, understand the task: find the letter cluster that has a different pattern from the others.
• Convert each letter in every option to its numerical position in the alphabet (A=1, B=2, ..., Z=26).
• For each cluster, calculate the mathematical difference between the first and second letters, and then between the second and third letters.
• Compare the patterns of differences across all four options.
• Identify the option whose pattern of differences is unique. This will be the correct answer.

Concept Tested & Keywords

• Concept Tested: Logical Reasoning - Alphabet Series Pattern Recognition
• Stem keywords: English alphabetical order, letter-clusters, alike, group, DOES NOT belong
• Lead-in keywords: Which, DOES NOT
• Negative lead-in flag: This question asks to identify the option that DOES NOT belong to the group.

Question ID

QG4Lrt9ZjaCZLw0tgw-C0z

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