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: 1. She must visit M before N. 2. She must visit N before Q. 3. The third company she visits must be P. If the sales representative visits S first, which company must she visit second?
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: 1. She must visit M before N. 2. She must visit N before Q. 3. The third company she visits must be P. If the sales representative visits S first, which company must she visit second? Correct Answer M/R
1. The sales representative visits S first.
2. The third company she visits must be P.
3. She must visit M before N.
4. She must visit N before Q.
She visits M before N and N before Q. There are two possibilities here:
Case I: M is the second company visits.
| 1 | S |
| 2 | M |
| 3 | P |
| 4 | N |
| 5 | Q |
| 6 | R |
Case II: M is the fourth company she visits.But R is not in the option, hence, she must visit M immediately after S.
| 1 | S |
| 2 | R |
| 3 | P |
| 4 | M |
| 5 | N |
| 6 | Q |
Hence, M/R is the second company she visits.