Discuss Forum

1. Five people want to rent the last two copies of a movie. How many ways can these five people rent the two movies?

  • A. 10
  • B. 10
  • C. 10
  • D. 10

Answer: Option A

Explanation:

Let A, B, C, D, and E represent the five people who want to rent the two movies.
List the different pairs of people to find there are 10 pairs
{AB,AC,AD,AE,BC,BD,BE,CD,CE,DE}.

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