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Problem 11 (2003 AMC 8)

AMC 8Easy

From module Arithmetic and Number Theory Basics

Problem

Business is a little slow at Lou's Fine Shoes, so Lou decides to have a sale. On Friday, Lou increases all of Thursday's prices by 10%10\%. Over the weekend, Lou advertises the sale: "Ten percent off the listed price. Sale starts Monday." How much does a pair of shoes cost on Monday that cost 4040 dollars on Thursday?

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