A sales representative plans to visit each of six companies – M, N, P, Q, R and S exactly once during the course of one day. She is setting up her schedule for the day according to the following conditions:
(i) She must visit M before N and before R
(ii) She must visit N before Q
(iii) The third company she visits must be P
If the sales representative visits S sixth, which of the following could be her first and second visits respectively?
Explanation:
According to information, P must be in third place and the order M, N and Q must not be violated. This is followed only in the arrangement M S P N R Q.