The price of each item at the Gauss Gadget Store has been reduced by 20% from its original price. An MP3 player has a sale price of \$112. What would the same MP3 player sell for if it was on sale for 30% off of its original price?
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puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.
Source: CEMC, University of Waterloo,
licensed CC-BY-NC-4.0.
Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.