+0  
 
0
162
2
avatar

In how many ways can I arrange four different books on a shelf?

Guest Feb 19, 2015

Best Answer 

 #2
avatar+17711 
+5

Let's say that you are arranging them from left to right.

You have 4 choices for the first book, then 3 choices for the next book, then 2 choices, then only 1 choice.

To find the total number of choices, multiply these numbers:  4x3x2x1 = 24 different ways.

(A short way to write  4x3x2x1  is 4!, where "!" means "factorial".)

geno3141  Feb 19, 2015
Sort: 

2+0 Answers

 #1
avatar
0

16 different ways

Guest Feb 19, 2015
 #2
avatar+17711 
+5
Best Answer

Let's say that you are arranging them from left to right.

You have 4 choices for the first book, then 3 choices for the next book, then 2 choices, then only 1 choice.

To find the total number of choices, multiply these numbers:  4x3x2x1 = 24 different ways.

(A short way to write  4x3x2x1  is 4!, where "!" means "factorial".)

geno3141  Feb 19, 2015

15 Online Users

avatar
avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details