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UPSC CSE CSAT 2017 · Paper II (CSAT) · Question 9 · Logical & analytical reasoning

निम्नलिखित 2 (दो) प्रश्नांशों के लिए निर्देश : दी गई जानकारी पर विचार कीजिए और उसके नीचे आने वाले…

UPSC Civil Services (Preliminary) Examination 2017, General Studies Paper II (CSAT), Question 9 — Logical & analytical reasoning.

CSAT 2017 · Q9

Logical & analytical reasoning Medium

निम्नलिखित 2 (दो) प्रश्नांशों के लिए निर्देश : दी गई जानकारी पर विचार कीजिए और उसके नीचे आने वाले दो प्रश्नांशों के उत्तर दीजिए।

‘X दल’ का कोई भी समर्थक, जो Z को जानता था और उसके अभियान की रणनीति का समर्थन करता था, ‘Y दल’ के साथ गठबंधन के लिए तैयार नहीं था; किन्तु उनमें से कुछ के ‘Y दल’ में मित्र थे।

उपर्युक्त जानकारी के सन्दर्भ में, निम्नलिखित में से कौन-सा एक कथन सत्य होना ही चाहिए?

Read this question in English

Directions for the following 2 (two) items: Consider the given information and answer the two items that follow.

No supporters of ‘party X’, who knew Z and supported his campaign strategy, agreed for the alliance with ‘party Y’; but some of them had friends in ‘party Y’.

With reference to the above information, which one among the following statements must be true?

(a) Some supporters of ‘party Y’ did not agree for the alliance with the ‘party X’. · (b) There is at least one supporter of ‘party Y’ who knew some supporters of ‘party X’ as a friend. · (c) No supporters of ‘party X’ supported Z’s campaign strategy. · (d) No supporters of ‘party X’ knew Z.

उत्तर और व्याख्या · explanation in English

Answer: (b) ‘Y दल’ का कम-से-कम एक समर्थक ऐसा है, जो ‘X दल’ के किसी समर्थक को मित्र के रूप में जानता था।

The information is about a group of party X supporters who knew Z and backed his campaign strategy, and it says some of them had friends in party Y. So at least one person in party Y has a party X supporter as a friend.

  1. Call the group described G: supporters of party X who knew Z and supported his campaign strategy.
  2. 'Some of them had friends in party Y' tells us that G is not empty and that at least one member of G has a friend in party Y.
  3. Friendship works both ways, so that person in party Y knows a supporter of party X as a friend — option (b).
  4. Check (c) and (d): G itself consists of party X supporters who knew Z and backed his strategy, so both 'No …' statements are false.
  • ✗ (a) The information says nothing about how party Y's supporters viewed the alliance; it speaks only of party X supporters.
  • ✓ (b) Some members of the group had friends in party Y, so at least one person in party Y counts a party X supporter as a friend.
  • ✗ (c) The group described consists of party X supporters who did support Z's strategy, so this is false.
  • ✗ (d) The same group knew Z, so it is false that no party X supporter knew Z.

Remember · 'Some of them' confirms the group exists. A 'No …' statement fails as soon as one member of that group is shown to exist.

Question and answer: UPSC's official GS Paper II (2017, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·

Cite this question: UPSC CSE CSAT 2017, Q9 — minimalistias.com/pyqs/csat/2017/q9

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