In Daya's bag there are 3 books of History, 4 books of Science
and 2 books of Maths. In how many ways can Daya arrange the
books so that all the books of same subject are together?
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Step-by-step explanation:
- The three types of books are History, science and maths.
- So the books can be arranged in 3! Ways
- = 3 x 2 x1
- = 6
- Now each type of books can be arranged as
- History 3 books can be arranged in number of ways 3! = 3 x 2 x 1 = 6.
- Science 4 books can be arranged in number of ways 4! = 4 x 3 x 2 x 1 = 24.
- Maths 2 books can be arranged in number of ways 2! = 2 x 1 = 2 .
- Therefore the total number of ways Daya can arrange will be 6 x 6 x 24 x 2 = 1728 ways.
Reference link will be
https://brainly.in/question/8103215
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