How many combinations of pennies (1 cent), nickels (5 cents) and/or dimes (10 cents) are there with a total value of 25 cents?
pretty simple to list these out
(0,0,25)
(0,1,20)
(0,2,15)
(0,3,10)
(0,4,5)
(0,5,0)
(1,0,15)
(1,1,10)
(1,2,5)
(1,3,0)
(2,0,5)
(2,1,0)
12 ways
+1207 
