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UPSC CSE CSAT 2023 · Paper II (CSAT) · Question 39 · Logical & analytical reasoning

निम्नलिखित पर विचार कीजिए, जिनमें प्रश्न और कथन शामिल हैं : किसी परिवार में 5 सदस्य A, B, C, D, E…

UPSC Civil Services (Preliminary) Examination 2023, General Studies Paper II (CSAT), Question 39 — Logical & analytical reasoning.

CSAT 2023 · Q39

Logical & analytical reasoning Medium

निम्नलिखित पर विचार कीजिए, जिनमें प्रश्न और कथन शामिल हैं :

किसी परिवार में 5 सदस्य A, B, C, D, E हैं ।

प्रश्न : E का B से क्या संबंध है ?

  1. कथन-1: A और B विवाहित दंपति हैं ।
  2. कथन-2: D पिता है C का ।
  3. कथन-3: E पुत्र है D का ।
  4. कथन-4: A और C बहनें हैं ।

उपर्युक्त प्रश्न और कथनों के बारे में निम्नलिखित में से कौन-सा एक सही है ?

Read this question in English

Consider the following including the Question and the Statements:

There are 5 members A, B, C, D, E in a family.

Question: What is the relation of E to B?

Statement-1. A and B are a married couple.

Statement-2. D is the father of C.

Statement-3. E is D's son.

Statement-4. A and C are sisters.

Which one of the following is correct in respect of the above Question and Statements?

(a) Statement-1, Statement-2 and Statement-3 are sufficient to answer the Question. · (b) Statement-1, Statement-3 and Statement-4 are sufficient to answer the Question. · (c) All four statements together are sufficient to answer the Question. · (d) All four statements are not sufficient to answer the Question.

उत्तर और व्याख्या · explanation in English

Answer: (c) सभी चारों कथन मिल कर प्रश्न का उत्तर देने के लिए पर्याप्त हैं ।

A and C are sisters and D is C's father, so D is A's father too, and E, D's son, is A's brother. A, a woman, is married to B, so B is A's husband and E is B's brother-in-law. Every one of the four statements is used in this chain.

  1. Statement-4: A and C are sisters, so both are female. Statement-2: D is C's father, so D is A's father as well.
  2. Statement-3: E is D's son, so E is the brother of A and C.
  3. Statement-1: A and B are married; A is female, so B is A's husband.
  4. E is the brother of B's wife, i.e. E is B's brother-in-law.
  5. Without Statement-2 or Statement-4, E cannot be linked to A; without Statement-1, B is unconnected. So all four are needed.
  • ✗ (a) Without Statement-4, nothing links A (and so B) to C, D or E.
  • ✗ (b) Without Statement-2, D (and so E) is not linked to A and C.
  • ✓ (c) Together they give: E is A's brother and B is A's husband, so E is B's brother-in-law.
  • ✗ (d) The four statements together do answer the Question.

Remember · In blood-relation sufficiency questions, trace one chain from the first person to the second; every link used is a required statement.

Question and answer: UPSC's official GS Paper II (2023, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·

Cite this question: UPSC CSE CSAT 2023, Q39 — minimalistias.com/pyqs/csat/2023/q39

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