In this type of questions, some clues are given regarding the order of occurrence of certain events. The candidate is required to analyse the given information, frame the right sequence and then answer the questions accordingly.

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 R.**(ii).** She must visit N before Q.**(iii).** The third company she visits must be P.

**If the sales representative visits S first, which company must she visit second ?**

** Option:**

**A.**M

**B.**N

**C.**P

**D.**Q

**E.**R

**Answer: A . M**

** Justification:**

Of the six companies if S is first, P is third and the orders M N Q and M R are followed. Clearly, M must be visited second.