Mathematics: One saturday, you decided to invite some friends over to watch movies that you found on a list of the top 100 movies of all time. you have narrowed it down to 7 movies, but your friends only have time to stay for 5. how many different group of movies can you watch in the time available?

You could it is a chance of 4/12 or 0.333...

One saturday, you decided to invite some friends

nabulya28

12.03.2022

Number of available movies to watch = 7

Number of movies that we need to select = 5

This can be done in $7C_{5}$ ways.

$7C_{5} = \frac{7!}{5! 2!}$

$= \frac{6(7)}{2}$

= 21 ways

Hence, 5 movies can be selected from the available 7 movies in 21 ways.

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