UPSC Prelims 1997 · General Studies

Question 143: Logical Reasoning and Mental Ability

Consider the following: I. Saxena, David, Jain and Kumar were District Collectors at places P, Q, R and S respectively in 1970. II. In 1972 they were transferred. Saxena and Jain interchanged places. Kumar and David also interchanged places. III. One year later in 1973 they were again transferred such that David and Jain interchanged places and Saxena and Kumar were also interchanged. What should be the next round of transfers so that all the four persons could have been posted at all the four places?

aInterchange Saxena and David as well as Jain and Kumar

bInterchange Saxena and Kumar as well as David and Jain

cInterchange David and Kumar as well as Saxena and Jain

dIt is not possible for all the four persons to have been posted at all the four places

The published answer to this question looks wrong to us, so none is shown until it has been checked.

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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.