November 18–November 24, 2008

Problem

A pencil, eraser, and notebook together cost one dollar. A notebook costs more than two pencils, three pencils cost more than four erasers, and three erasers cost more than a notebook.

How much does each item cost (assuming that each item costs an integral number of cents)?

Solution

here

List of solvers

Trey Sakazaki (elementary school); Kevin Wallace (undergrad); Jacob Lewis, Dustin Moody, Justin Shih (graduate); Gary Raymond (staff); Marina Meila (faculty); Dean Anderson, Lloyd Sakazaki, Lawrence Hon, Mike Goodman, Steve Wilmarth, Hansi Singh (outside).

Kevin Wallace wins the prize!