Out of the four letter-clusters given below, three are alike in some way and one is different from the others. Choose the odd letter-cluster.

1. A

   HKL

2. B

   DGH

3. C

   PSU

4. D

   ORS

Appeared in: DSSSB 12 August 2024

Explanation

• The letter cluster PSU is the odd one out because it follows a unique mathematical pattern compared to the others.
• The alphabetical positions of the letters are P=16, S=19, and U=21.
• The pattern of progression is from 16 to 19 (+3) and from 19 to 21 (+2).
• This pattern of (+3, +2) is different from the (+3, +1) pattern observed in all other options.

Why Other Options Were Wrong

• Option A: The cluster HKL is incorrect because it follows the common pattern found in the majority of the options.
• Option B: The cluster DGH is incorrect because it also adheres to the common (+3, +1) pattern.
• Option D: The cluster ORS is incorrect as it follows the same (+3, +1) pattern as HKL and DGH.

Related Visual

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 (Letter Series) as background academic context rather than a clinical decision trigger.
• Pattern recognition is a key cognitive skill tested in the General Intelligence section of many nursing entrance examinations.
• Solving these questions improves logical and analytical thinking, which is beneficial for clinical problem-solving and decision-making.
• What if? If the option was 'PSV' instead of 'PSU', the pattern would be P(16) -> S(19) -> V(22), which is +3, +3. This would also be an odd one out, but for a different reason.

How to Approach the Question

• First, identify the question type: It's a classification or 'odd one out' question involving letter clusters.
• The key is to find a common pattern among three of the options. This pattern is usually based on the alphabetical position of the letters.
• Assign a number to each letter in every option based on its position in the alphabet (A=1, B=2, ... Z=26).
• Calculate the difference (the 'jump') between consecutive letters in each cluster.
• Compare the patterns of differences. The cluster with a unique pattern is the correct answer.

Concept Tested & Keywords

• Concept Tested: Logical Reasoning - Odd One Out (Letter Series)
• Stem keywords: letter-clusters, alike, different, odd letter-cluster
• Lead-in keywords: Choose
• Negative lead-in flag: false

Question ID

Qahm-PztJyisfp7Vpdq5wi

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