Processing math: 100%
 
+0  
 
+1
46
2
avatar+1266 

In how many ways can I arrange $3$ different math books and $4$ different history books on my bookshelf, if at least three of the history books are next to each other?

 Mar 25, 2024
 #1
avatar+15 
+1

=(43)5!=480.

cheeky

.
 Mar 25, 2024
 #2
avatar+57 
0

wait, you made a error - you need to subtract the 6 ways all four are together 3 times, as that was quadruple counted

 Mar 25, 2024

1 Online Users