Five numbers can be arranged in 5! = 120 ways.
24 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
49
60
If the books have to be the correct way up and spine outwards: 7! ways =7x6x5x4x3x2x1 =5040 ways. If the books can be any way in (upside down, spine inward, etc.): (7!x4^7) ways =7x4x6x4x5x4x4x4x3x4x2x4x1x4 =82,575,360 ways
81
There are 2*5! = 240 ways.
The answer depends on how many books on each subject there are.
it depends on the shelf of course
The number of ways that 15 books can be arranged on a shelf is the same as the number of permutations of 15 things taken 15 at a time. This is 15 factorial, or 15!, and is 1,307,674,368,000.
how many ways can 8 letters be arranged
Five numbers can be arranged in 5! = 120 ways.
9 x 8 x 7 x 6 x 5
4! = 24, they can be arranged in 24 different ways
In how many distinct ways can the letters of the word MEDDLES be arranged?
They can't be arranged in a million different ways!