There are 16 different books and 38 different movies in the ' crazy silly school ' series. If you read 26 of the movies and watched 25 of the books How many more movies than books have you read?
There are 16 different books and 38 different movies in the 'crazy silly school' series. 

If you read 26 of the movies and watched 25 of the books, then you have read 1 more movie than book.