Question 850454
3+4+1+2=10 bills
She needs more than a total of $25
There are only two ways to get more than $25
 20& 50 or 
50& 50
She needs at least one $50 or  $20 on the first draw
3/10
on the second draw 2/9
3/10*2/9=6/90=2/45
chances of breaking even are 
4/10*3/9=12/90=6/45=2/15
so add 6/45+2/45 to get 8/45 for chances of getting $25 or more
chances for getting less than $25 are pretty high
1-8/45=37/45