DeCart's Horse Problem
A horse cost onefourth more than a carriage; the horse was sold for 20% more than cost, and the carriage for 20% less than cost. Both sold together for $368. What was the cost of each?
Note: Try to do this one using pictures only...i.e. sans algebra!
Solution:
Source: Teachers' Credential Exam, Washinghton State, circa 1910
