UPSC Prelims 2017 · CSAT
Question 71: Logical Reasoning and Mental Ability
A, B, C, D, E, F and G are Lecturers from different cities—Hyderabad, Delhi, Shillong, Kanpur, Chennai, Mumbai and Srinagar (not necessarily in the same order) who participated in a conference. Each one of them is specialized in a different subject, viz., Economics, Commerce, History, Sociology, Geography, Mathematics and Statistics (not necessarily in the same order). Further
- 1.Lecturer from Kanpur is specialized in Geography
- 2.Lecturer D is from Shillong
- 3.Lecturer C from Delhi is specialized in Sociology
- 4.Lecturer B is specialized in neither History nor Mathematics
- 5.Lecturer A who is specialized in Economics does not belong to Hyderabad
- 6.Lecturer F who is specialized in Commerce belongs to Srinagar
- 7.Lecturer G who is specialized in Statistics belongs to Chennai
Who of the following belongs to Hyderabad?
AnswerUPSC’s answer is (b).
From the clues, A is from Mumbai: not Hyderabad by the fifth clue, and not Kanpur, whose lecturer specialises in Geography rather than Economics. So B and E share Hyderabad and Kanpur. B is neither History nor Mathematics, so B takes Geography, which puts B in Kanpur. That leaves E in Hyderabad.
Why each option is right or wrong
- (a) B is from Kanpur, as the Geography lecturer.
- (b) Correct: B goes to Kanpur, leaving Hyderabad to E.
- (c) E is from Hyderabad, so neither is wrong.
- (d) The clues are enough to decide.
Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.
Source: UPSC, Civil Services (Preliminary) Examination 2017, General Studies Paper II (CSAT), Series A. The paper on upsc.gov.in.