2024 CSAT, all questions

UPSC Prelims 2024 · CSAT

Question 74: Logical Reasoning and Mental Ability

A Main Statement is followed by four Statements labelled P, Q, R and S. Choose the ordered pair of the Statements where the first Statement implies the second, and the two Statements are logically consistent with the Main Statement.

  1. Main StatementPradeep becomes either a Director or a Producer.
  2. Statement PPradeep is a Director.
  3. Statement QPradeep is a Producer.
  4. Statement RPradeep is not a Director.
  5. Statement SPradeep is not a Producer.

Select the correct answer.

aSP only
bRQ only
cBoth SP and RQ
dNeither SP nor RQ

AnswerUPSC’s answer is (c).

The main statement means Pradeep is at least one of Director or Producer, and each pair is tested for implication. SP: if he is not a Producer, he must be a Director, so S implies P, and the pair is consistent with the main statement. RQ: if he is not a Director, he must be a Producer, so R implies Q, also consistent. Both ordered pairs work.

  • SP. Not a Producer forces Director.
  • RQ. Not a Director forces Producer.
Why each option is right or wrong
  • (a) Wrong. SP works, but RQ also works.
  • (b) Wrong. RQ works, but SP also works.
  • (c) Right. Denying one role forces the other role in each pair.
  • (d) Wrong. Both pairs hold.

Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.

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Source: UPSC, Civil Services (Preliminary) Examination 2024, General Studies Paper II (CSAT), Series A. The paper on upsc.gov.in.