240. 120 ways with the books stacked verticly, and 120 ways with the books stacked horizontaly, or one on top of the other.
Chat with our AI personalities
You can wind up with 10 different pairs of books in your hand, which you can choose from a shelf of 5 books in 20 different ways.
120. You do 5*4*3*2*1=120. you multiply the number that you are given for example how many times can books 3 be arranged on a shelf you multiply 3*2*1=6 that is your answer
8 ! = 8 X 7 X 6 X 5 X 4 X 3 X 2 X 1 = 40320
Answerthe answer is 24 WHICH is the result of the multiplication: 4x 3 x 2 x 1 = 24. You can try it practically as: Numbering books as A,B, C, and D then the variations are:ABCDABDCBACDBADCCDABCDBADCABDCBABCADBCDACBADCBDAADBCADCBDABCDACBBDACBDCADBACDBCAACBDACDBCABDCADB
One row of 5 different brands with each type being represented can be arranged in 5x4x3x2x1= 120 ways