There are 9 books you plan to put on a bookshelf. Of these, 3 are math...

There are 9 books you plan to put on a bookshelf. Of these, 3 are math books, 2 are chemistry books, 3 are physics books, and 1 is a geography book. Assume the order in which you place the books matters.

(a) How many ways result in the physics books being placed together on the bookshelf?

b) How many ways result in the math book being placed last on the bookshelf?

Solutions

Expert Solution

A) Total ways when all physics books are together is 420

B) Total ways when math book is fixed at last postion is 1680 ways

Solution file is attached go through it

Thanks

orchestra answered 1 year ago

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