2010 AMC 8 Problems/Problem 7
Problem
Using only pennies, nickels, dimes, and quarters, what is the smallest number of coins Freddie would need so he could pay any amount of money less than a dollar?
Solution
If he has quarters, his other coins are able to pay amount amount less than or equal to
cents, because it can just be added on to the value of his quarters. If he has
dimes and
nickel, he can pay any amount that is a multiple of
. Lastly, Freddie need
pennies for a total of
coins.
See Also
2010 AMC 8 (Problems • Answer Key • Resources) | ||
Preceded by Problem 6 |
Followed by Problem 8 | |
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