Number of available movies to watch = 7
Number of movies that we need to select = 5
This can be done in [tex]7C_{5}[/tex] ways.
[tex]7C_{5} = \frac{7!}{5! 2!}[/tex]
[tex]= \frac{6(7)}{2}[/tex]
= 21 ways
Hence, 5 movies can be selected from the available 7 movies in 21 ways.
