2014 CSAT, all questions

UPSC Prelims 2014 · CSAT

Question 79: Logical Reasoning and Mental Ability

Passage · as printed by UPSC
Passage beginning “A, B, C, D, E, F are members of…”

Which of the following is/are a couple/couples ?

aAD only
bBC only
cBoth AD and BC
dBoth AC and BD

AnswerUPSC’s answer is (c).

Match the jobs first: A is the engineer, C the lawyer, E the doctor and F the draughtsman, leaving judge and stenographer for B and D. The judge is married to C, so the judge is B, C's husband and D's son, and D is the lady stenographer married to the engineer A. The two married couples are A with D and B with C; E is unmarried.

Why each option is right or wrong
  • (a) AD is one couple, but BC is the other.
  • (b) BC is one couple, but AD is the other.
  • (c) Right. AD and BC are the two married couples.
  • (d) AC and BD are in-law and parent-child pairs, not couples.

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

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Source: UPSC, Civil Services (Preliminary) Examination 2014, General Studies Paper II (CSAT), Series A. The paper on upsc.gov.in.