Stella is organizing textbooks on her bookshelf. She has an English textbook, a biology textbook, a physics textbook, and a writ
ing textbook. How many different ways can she line the textbooks up on her bookshelf?
1 answer:
Answer:
24 ways
Step-by-step explanation:
Books :
Physics = 1
English = 1
Biology = 1
Writing = 1
Total = (1 + 1 + 1 + 1) = 4 books
Number of ways of arrangement :
Total number of books! = 4!
4! = 4 * 3 * 2 * 1 = 24 different ways
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