<PRE><B>Question 1116461</B>
An arcade has 20 different arcade games. You want to play at least 14 of them. How many different combinations of arcade games can you play?
----
If you play 14:: 20C14
If you play 15:: 20C15
If you play 16:: 20C16
...
If you play 20:: 1
------------------------
Ans: 20C14+20C15+20C16+...+ 20C19 + 1
----------------
Cheers,
Stan H.
---------------</PRE>