Five words are given below. Four of them are similar. Choose the word which is not similar to the remaining words: Ink, Paper, Pencil, Pen, Sharpener:

1. A

   Ink

2. B

   Paper

3. C

   Pencil

4. D

   Sharpener

Appeared in: RRB Staff Nurse Delhi-2015

Explanation

• Paper is the correct answer because it serves as the surface or substrate for writing.
• All the other items—Ink, Pencil, Pen, and Sharpener—are either tools used to write or materials/accessories that support the act of writing.
• This places Paper in a distinct functional category (a surface) compared to the others (implements and materials).

Why Other Options Were Wrong

• Option A: Ink is a material used in a pen for writing. It belongs to the group of writing materials and is therefore similar to Pen and Pencil in function.
• Option B: A pencil is a tool used for writing or drawing. It fits into the category of writing implements along with Pen and Ink.
• Option C: A sharpener is an accessory used to maintain a pencil, which is a writing tool. It is directly related to the act of writing and is part of the 'writing implements' group.

Related Visual

• Visual 1: No visual is required for this logical reasoning question.

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 as background academic context rather than a clinical decision trigger.
• This question assesses general intelligence and logical reasoning, which are essential cognitive skills for nurses.
• Nurses use logical reasoning daily for critical thinking, problem-solving, and making sound clinical judgments in patient care.
• While not a clinical question, the ability to categorize and find outliers is analogous to identifying an abnormal symptom or lab value that doesn't fit a patient's overall clinical picture.

How to Approach the Question

• First, carefully read all the words provided in the set: Ink, Paper, Pencil, Pen, Sharpener.
• Identify the underlying relationship or common category that connects most of the words.
• Observe that Ink, Pen, Pencil, and Sharpener are all items used to perform or support the act of writing.
• Determine which word does not fit this established category. Paper is the surface on which one writes, not a tool for writing.
• Conclude that Paper is the odd one out because its function is different from all the other items.

Concept Tested & Keywords

• Concept Tested: Logical Reasoning - Odd One Out
• Stem keywords: Ink, Paper, Pencil, Pen, Sharpener
• Lead-in keywords: not similar
• Negative lead-in flag: The question asks to identify the word that is 'not similar', which indicates a negative framing, requiring the identification of an outlier.

Question ID

Qx47vbfxZUGoWi1_Zjf1Z5

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