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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

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 ?

(a)

Interchange Saxena and David as well as Jain and Kumar

(b)

Interchange Saxena and Kumar as well as David and Jain

(c)

Interchange David and Kumar as well as Saxena and Jain

(d)

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

Answer:

Explanation