SOLUTION: how many ways can 3 books be placed on a shelf if chosen from a selection of 7 different books?
Algebra.Com
Question 332309: how many ways can 3 books be placed on a shelf if chosen from a selection of 7 different books?
Answer by nyc_function(2741) (Show Source): You can put this solution on YOUR website!
Use nPr = n!/(n-r)!
Let n = 7
Let r = 3
7P3 = 7!/(7-3)!
7P3 = 5040/4!
7P3 = 5040/24
7P3 = 210
There are 210 ways or permutations.
RELATED QUESTIONS
In how many ways can 3 different books be chosen from 7 different books and arranged in 3 (answered by KMST)
A library has 3 books from each of 3 different authors.
How many ways can the library... (answered by ikleyn)
I need your help please!
A library has 3 books from each of 5 different authors.
How... (answered by Edwin McCravy)
A library has 3 books from each of 5 different authors.
How many ways can the library... (answered by ewatrrr)
A library has 4 books from each of 3 different authors.
How many ways can the library... (answered by ikleyn)
in how many ways can 10 different books be arranged on a shelf if there is room for... (answered by stanbon)
In how many ways can 4 different Math books, 5 different History books, and 2 different... (answered by Boreal)
In how many ways can 4 different Math books, 5 different History books, and 2 different... (answered by greenestamps)
There are 10 books on a shelf. How many different ways can the books be... (answered by MathLover1)