B is the sister of D. The father of C, E is the son of D. F is the mother of E. How is B related to F?

Appeared in: DSSSB 12 August 2024

Explanation

The statements establish that D and F are the parents of E, making D the husband of F.
It is explicitly stated that B is the sister of D.
The sister of one's husband is defined as a sister-in-law.
Therefore, B is F's sister-in-law.

Option A: F is the mother of E, not B. B and F are in the same generation as siblings and spouses.
Option C: A mother-in-law is the mother of one's spouse. B is the sister of F's spouse (D), not the mother.
Option D: B is the sister of D. Since F is married to D, their relationship is by marriage (in-law), not a direct sibling relationship.

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 core nursing skill used for interpreting complex patient information, connecting symptoms to causes, and making sound clinical judgments.
This type of systematic problem-solving helps develop the critical thinking needed for tasks like creating care plans, troubleshooting equipment, and prioritizing patient needs.
What if? - If the question stated 'B is the brother of D', the relationship would change to 'brother-in-law'. This highlights how a single word can alter the entire logical conclusion, a crucial detail to watch for in patient charts and orders.

How to Approach the Question

First, identify the direct relationships given in each statement (e.g., B is the sister of D).
Combine statements to deduce indirect relationships. For example, 'E is the son of D' and 'F is the mother of E' together imply that D and F are a couple.
Determine the gender of each person where possible (sister = female, son = male, mother = female). This helps clarify roles like husband and wife.
Draw a simple family tree or diagram to visualize the connections. Place D and F together as parents of E, and then add B as a sibling to D.
Trace the relationship path from the first person (B) to the second person (F) using the established connections to find the final answer.

Concept Tested & Keywords

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E6 Applied Sociology for Nurses TK Indrani p. 152-154

Practise the full DSSSB 12 August 2024

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