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UPSC CSE CSAT 2021 · Paper II (CSAT) · Question 39 · Data interpretation & sufficiency

दो कथनों और एक प्रश्न पर विचार कीजिए :

UPSC Civil Services (Preliminary) Examination 2021, General Studies Paper II (CSAT), Question 39 — Data interpretation & sufficiency.

दो कथनों और एक प्रश्न पर विचार कीजिए :

  1. कथन-1: A और D में से प्रत्येक, B, E और F में प्रत्येक से अधिक भारी है, किंतु उनमें से कोई भी सबसे अधिक भारी नहीं है ।
  2. कथन-2: A, D से अधिक भारी है, किंतु C से हल्का है ।
  3. प्रश्न: A, B, C, D और E में सबसे अधिक भारी कौन है ?

कथनों और प्रश्न के संदर्भ में, निम्नलिखित में से कौन-सा सही है ?

Read this question in English

Consider two Statements and a Question:

Statement-1. Each of A and D is heavier than each of B, E and F, but none of them is the heaviest.

Statement-2. A is heavier than D, but is lighter than C.

Question. Who is the heaviest among A, B, C, D and E?

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

(a) Statement-1 alone is sufficient to answer the Question · (b) Statement-2 alone is sufficient to answer the Question · (c) Both Statement-1 and Statement-2 are required to answer the Question · (d) Neither Statement-1 alone nor Statement-2 alone is sufficient to answer the Question

उत्तर और व्याख्या · explanation in English

Answer: (c) प्रश्न का उत्तर देने के लिए कथन-1 और कथन-2 दोनों की आवश्यकता है — UPSC also accepted (d)

Statement-2 gives C > A > D, and Statement-1 adds that A and D are heavier than B and E; only together do they show that C is the heaviest of the five. UPSC's final key accepted both (c) and (d), because when both statements are required it is also true that neither alone is sufficient.

  1. Statement-1: A and D are heavier than B, E and F, but C is never compared with anyone, and 'the heaviest' may be someone outside the list — so it cannot name the heaviest of A, B, C, D, E.
  2. Statement-2: C > A > D, but B and E are not compared with C — not sufficient alone.
  3. Together: C > A > D, and A, D > B, E, so C is heavier than all the others — C is the heaviest.
  4. Both statements are required (c). That also makes 'neither statement alone is sufficient' (d) true, and UPSC accepted both.
  • ✗ (a) Statement-1 never places C, so it cannot settle who is heaviest among the five.
  • ✗ (b) Statement-2 says nothing about B and E relative to C.
  • ✓ (c) Combining gives C > A > D, with A and D both heavier than B and E, so C is the heaviest.
  • ✓ (d) Since both statements are needed, neither alone is sufficient — literally true, and accepted by UPSC.

Remember · In data sufficiency, 'both are required' also means 'neither alone suffices' — watch for overlapping options.

Question and answer: UPSC's official GS Paper II (2021, Series A) — paper ↗ · answer key ↗. Explanation: Minimalist IAS, checked 30 Sept 2026 (how we verify). ·

Cite this question: UPSC CSE CSAT 2021, Q39 — minimalistias.com/pyqs/csat/2021/q39

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