Posted by **cole** on Wednesday, March 31, 2010 at 5:49pm.

i have 5 coins,a penny,nickel,dime,quarter and loonie. how many different amounts of money can i pay using any combination of the coins?

- math -
**Reiny**, Wednesday, March 31, 2010 at 5:58pm
I can use the penny in two ways, that is, either use it or not use it.

The same goes for the other 4 coins

So the number of ways is

2x2x2x2x2 = 32

but that includes not using any coins, which would not be an "amount of money"

so the number of ways is 31

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