If 'A # B' means - 'A is the sister of B', 'A ^ B' means - 'A is the mother of B', 'A * B' means - 'A is the wife of B', and 'A % B' means 'A is the father of B', then how is 'C' related to 'E' in the following expression? A * B % C # D ^ E % F?

1. A

   maternal aunt

2. B

   Sister

3. C

   Mother

4. D

   Paternal Aunt

Appeared in: UP CHO - 10 September 2021

Explanation

• The expression is decoded step-by-step, establishing that D is the mother of E (from 'D ^ E').
• The expression also shows that C is the sister of D (from 'C # D').
• Combining these facts, C is the sister of E's mother.
• The sister of a person's mother is defined as their maternal aunt.

Why Other Options Were Wrong

• Option B: C is the sister of D, not E. C and E belong to different generations in the family tree.
• Option C: D is the mother of E, as indicated by 'D ^ E'. C is D's sister.
• Option D: A paternal aunt is the father's sister. C is the mother's sister.

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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 - Blood Relations as background academic context rather than a clinical decision trigger.
• While not a clinical question, logical reasoning is a foundational skill for nurses. It is used daily for interpreting patient data, recognizing patterns in symptoms, and making sound clinical judgments.
• This skill helps in prioritizing care by logically deducing the most urgent needs from a complex set of patient information.
• What if? - If the expression was 'C % D ^ E', C would be the father of D, and D the mother of E. This would make C the maternal grandfather of E, completely changing the relationship and demonstrating how a single symbol change alters the entire family structure.

How to Approach the Question

• First, carefully list and understand the meaning of each symbol provided in the question.
• Break down the given expression into smaller, sequential parts (e.g., A * B, then B % C, and so on).
• Translate each part of the expression into a simple family relationship statement.
• Drawing a simple family tree diagram is highly recommended to visualize the connections as you decode them.
• Trace the path from the first person (C) to the second person (E) in your diagram or notes to determine the final relationship.
• Finally, match your derived relationship with the given options.

Concept Tested & Keywords

• Concept Tested: Logical Reasoning - Blood Relations
• Stem keywords: A # B, A ^ B, A * B, A % B, how is 'C' related to 'E'
• Lead-in keywords: how is

Question ID

QBIRr33sbY_RQ7w65UnkOG

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