The ETS Says, "Why Make Math Problems Easy?"
Today's SAT Problem of the Day is a true classic, the one that Princeton Review made its bones with. Please remember before answering that this is from a late 1970s SAT (though a student-generated (free) response version with different numbers appeared within the last decade. It will be obvious in a bit that a non-multiple choice version requires actually knowing how to calculate this accurately). Calculators did not become available on the SAT until 1995. The section on which this appeared contained either 25 or 35 problems, and it was the last one in the section (meaning that it would be among the most difficult for students, based on previously-acquired empirical evidence during the screening process ETS uses for its test items and section construction). A woman drove to work at an average speed of miles per hour and returned along the same route at miles per hour . If her total traveling time was hour, what was the total number of miles in the rou...