Home » GMAT » How many different ways can five people be seated on a five-seat bench if two of them must sit next to each other?
In how many different ways can five people be seated on a five-seat bench if two of them must sit next to each other?
A. 24
B. 48
C. 120
D. 240
E. 480
Correct Answer: B
Explanation/Reference:
Explanation:
Treat the two that seat together as one person, now there are only 4 people to be seated in 4 places. This task has 4! Ways=24. Remember that the two people sitting together can switch places on any of the 24 different ways, so we have 48 ways total.
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