1997 General Studies, all questions

UPSC Prelims 1997 · General Studies

Question 133: Logical Reasoning and Mental Ability

In the series POQ, SRT, VUW, ?, the blank space refers to

aXYZ
bXZY
cYXZ
dYZX

AnswerThe answer is (c).

Each group takes three consecutive letters and writes them in the order middle, first, last: P-O-Q, S-R-T, V-U-W. The groups start three letters apart: P, S, V, so the next starts at Y. Its consecutive letters are X, Y, Z, written as middle, first, last: Y, X, Z.

Why each option is right or wrong
  • (a) XYZ is in alphabetical order and does not follow the pattern.
  • (b) XZY does not follow the middle-first-last pattern.
  • (c) Right: YXZ.
  • (d) YZX does not follow the middle-first-last pattern.

Explanation: written by UPSC Grade, not by UPSC.

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Source: UPSC, Civil Services (Preliminary) Examination 1997, General Studies. UPSC's own paper isn't online; the words are from a published compilation. The paper on upsc.gov.in.