Answers

2015-11-26T14:59:33+08:00
The largest number of coins is made by using all 5-cent coins. So the largest number is 35/5=7.
The smallest number of coins is made by using a combination of 25-cent coins and 10-cent coins. Note that 25+10=35 ,so the smallest number of coins is 2.
We find our difference to be 7-2=5.
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