Total number of 4 dip sundaes , if order is not considered and no flavor is repeated is 491400 .
Explanation:
We have , an ice cream store sells 28 flavors of ice cream, determine the number of 4 dip sundaes. how many are possible if order is not considered and no flavor is repeated? Let's find this:
- There are we flavors available as the first sundae flavor.
 -  After selecting a flavor for the first sundae flavor there are 27 flavors available for the second. 
 - The same way there are 26 flavors for the third sundae flavor and
 -  25 flavors available for the forth sundae flavor. 
 - So, Total number of 4 dip sundaes , if order is not considered and no flavor is repeated is 
 available sundaes. 
∴ Total number of 4 dip sundaes , if order is not considered and no flavor is repeated is 491400 .