To solve this question first we need to transform 2h 15min (film duration) into minutes as follows:
Once we know the film duration is 135 min, now we can simulate our situation as follows:
As we can see above, screening 5 movies + all the breaks between the movies takes 735 min, let's transform it:
So, 735 min is the same as 12h 15 min.
Now we just need to consider the screening has started at 10:00 and ad the screening duration: 10 h + 12h 15min = 22h 15min. So they'll finish screening the last movie at 22:15.