1. In how many ways can you arrange five mathematics books,four science books,and three english books, on a shelf such as that books of the same subject are keot together.
The number of arrangements per book is determined as, Math = 5! Science = 4! English = 3! Number of ways that 3 different books of the same subject be grouped together = 3! Using Fundamental Counting Principle, we have 103,680 ways
