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Problem 2 (2014 AMC 8)

AMC 8Very Easy

From module Arithmetic and Number Theory Basics

Problem

Paul owes Paula 3535 cents and has a pocket full of 55-cent coins, 1010-cent coins, and 2525-cent coins that he can use to pay her. What is the difference between the largest and the smallest number of coins he can use to pay her?

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