Answer: There are 45 combinations.
Step-by-step explanation:
If the order in which you watch the episodes does not matter, then we can use the combinatory defined as:
If we have N elements, and we want to make groups of K elements, we have
[tex]C(N,K) = \frac{N!}{(N-K)!*K!}[/tex]
combinations.
In this case, we have a total of N = 10 episodes, and we want to make groups of K = 2.
Then we have:
[tex]C = (10, 2) = \frac{10!}{8!*2!} = (10*9)/(2) = 5*9 = 45[/tex]
There are 45 combinations.
