Name of POW: "Bribery"
Problem
In order to encourage Sandy to do her science problems, Sandy's father promised to pay her $0.25 for every problem she got right, but he would take away $0.15 for every problem she missed. After working 20 problems, Sandy was paid $0.20 by her father.
How many of Sandy's problems were correct?
Strategy
Solution
Author: John Healy email: <Room423@aol.com>
Last Updated: Mon, May 4, 1998 7:44 PM PST