Question

Paul owes PAula $.35 and has a pocket full of five cents $.10 coins and $.25 coins that he can use to pay her what is the difference between the largest in the smallest number of coins he can use to pay her

Answer 1

First, what is the smallest amount of coins? it would be 1, if there was a 35 cents coin, but there isn't: so it will be 2: a .25 $ and a .10 $ coin.

the maximum amount of coins is by using the smallest coins, which is 0.05$. he would use 35/5=7 coins


and the difference is 5: 7-2=5