Which word does not belong with the others?

Appeared in: RML Lucknow - 2021

Explanation

The question asks to identify the word that does not fit the same category as the others.
The word 'Ounce' is a unit of weight or mass.
The other three words—'Inch', 'Centimetre', and 'Yard'—are all units of length or distance.
Therefore, 'Ounce' is the outlier because it measures a different physical quantity (weight/mass) compared to the others (length).

Option A: An 'Inch' is a unit of length. It belongs to the same category as 'Centimetre' and 'Yard', which also measure length.
Option C: A 'Centimetre' is a unit of length. It belongs to the same category as 'Inch' and 'Yard', which also measure length.
Option D: A 'Yard' is a unit of length. It belongs to the same category as 'Inch' and 'Centimetre', which also measure length.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of Units of Measurement as background academic context rather than a clinical decision trigger.
While not a direct clinical question, understanding units of measurement is fundamental in healthcare.
Nurses must differentiate between units of length (e.g., measuring wound size in centimetres), volume (e.g., administering medication in millilitres), and weight (e.g., dosing based on patient weight in kilograms).
A mix-up between units, such as confusing ounces (weight) with fluid ounces (volume), can lead to significant medication errors and patient harm.

How to Approach the Question

First, read the question carefully to understand the task: find the word that 'does not belong'. This is an 'odd one out' question.
Examine each option individually: 'Inch', 'Ounce', 'Centimetre', 'Yard'.
Identify the common characteristic or category that links most of the options. In this case, think about what each word represents.
Recognize that 'Inch', 'Centimetre', and 'Yard' are all units of length.
Determine which option does not fit this category. 'Ounce' is a unit of weight/mass, not length.
Conclude that 'Ounce' is the word that does not belong with the others.

Concept Tested & Keywords

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Practise the full RML Lucknow - 2021

Attempt every question from this paper in a timed mock, then review the full solution for each one.