An amusement park roller coaster includes five cars, numbered 1 through 5 from front to back. Each car accommodates up to two riders, seated side by side. Six people?Tom, Gwen, Laurie, Mark, Paul and Jack?are riding the coaster at the same time.
* Laurie is sharing a car.
* Mark is not sharing a car and is seated immediately behind an empty car.
* Tom is not sharing a car with either Gwen or Paul.
* Gwen is riding in either the third or fourth car.
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1.
Which of the following groups of riders could occupy the second car?
.
(A) Laurie only
(B) Tom and Gwen
(C) Laurie and Mark
(D) Jack and Tom
(E) Jack, Gwen, and Paul
Answer · Premise and Rules [/I]
By using POE you can eliminate answer C. Mark is not sharing a seat with anyone. Furthermore you can eliminate B because Tom will not sit with either gwen or paul. E is impossible because cart will only carry up to 2 seats. Again, question states that Laurie is sharing a seat so A is out of the question as well. Only answer is D, Jack and Tom.
