If blue is red, red is orange, orange is green and green is yellow then what is the color of the blood?

Appeared in: SGPGI Nursing Officer-2022

Explanation

This is a logical reasoning problem that requires applying a given set of rules.
The first step is to identify the real-world fact: the color of blood is red.
The problem provides a specific substitution rule: 'red is orange'.
By applying this rule to the fact, the color of blood in the context of this puzzle becomes 'orange'.

Option A: This is incorrect. According to the rules, 'yellow' is the code for 'green'. The question asks for the color of blood, which is red.
Option B: This is incorrect. 'Blue' is coded as 'red'. It is part of the rules but not the answer to the question about blood.
Option C: This is the actual color of blood in reality, but it is incorrect in the context of the puzzle. The question requires you to apply the given logical substitutions.

Clinical Relevance

Nursing practice connection: Knowing Logical Reasoning (Coding-Decoding) helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Although a logic puzzle, this question connects to the crucial nursing skill of observation. Assessing the color of body fluids, like blood, provides vital diagnostic information.
For example, bright red blood in stool (hematochezia) suggests lower GI bleeding, while dark, tarry stool (melena) suggests upper GI bleeding where blood has been digested.
A nurse must accurately document and report the characteristics of bleeding (color, amount, pattern) to help the healthcare team make timely and correct decisions.

How to Approach the Question

First, identify the core question being asked, which is 'what is the color of the blood?'.
Next, determine the factual, real-world answer to the core question. In this case, blood is red.
Carefully read the logical rules provided in the question. Look for the rule that applies to your factual answer.
The rule 'red is orange' directly corresponds to the color of blood.
Apply this substitution to find the final answer. Since blood is red, and 'red is orange', the answer is orange.
Review the other options to confirm why they are incorrect based on the puzzle's logic.

Concept Tested & Keywords

Concept Tested: Logical Reasoning (Coding-Decoding)
Stem keywords: blue is red, red is orange, orange is green, green is yellow, color of the blood
Lead-in keywords: what is
Negative lead-in flag: false

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Practise the full SGPGI Nursing Officer-2022

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