MathGrit
ProblemsTechniquesPricing
Sign inGet started
Back to problems

Minimum Coins for Any Amount

1050BeginnerCombinatoricsOptimization

AMC 8 · 2010 · Problem 7

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?

Answer choices

A
6
B
10
C
15
D
25
E
99
0 students attempted0% solvedRating 1050

Related practice paths

AMC 8 PracticeMiddle school contest practice with hints and review.What Is a Good AMC 8 Score?Understand AMC 8 results and set the next practice target.AIME Practice StrategyHow to improve accuracy on high-difficulty problems.

Ready to check your answer?

Create an account to submit answers, save history, and track your rating.

Progressive Hints5

Unlock hints one at a time — each reveals a little more without spoiling the solution.

Step-by-Step Solutions1

Multiple solution approaches with detailed walkthroughs, unlocked after you solve the problem.

AI-Powered Grading

Instant feedback on your answer — handles fractions, decimals, and equivalent forms.

Curated problem bank

Supported tracks for AMC, AIME, MATHCOUNTS, and olympiad-style training, plus global problem sources like UKMT, Euclid, and Kangaroo.