SOLUTION: solution of given question- four different maths book,six physics book and five chemistry book to be arranged on shelf.how many different arrangement must here if 1) books in each

Question 760064: solution of given question- four different maths book,six physics book and five chemistry book to be arranged on shelf.how many different arrangement must here if 1) books in each particular subject must be together
2)always maths book are together
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(1)
4 math books:

6 physics books:

5 chemistry books:

----------------------
There are different
ways to arrange these 3 groups of books

There are 12,441,600 ways to arrange the books
-----------------------------------------
(2)
Math books are together
4 math books:

------------------
The total of the other books is
You can think of this as 12 items: the group of
math books and each of the other books

Can't do this on my cheap calculator

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