SANTA PROBLEM! can you think of 2 ways to do this?
A Santa Claus-for-hire was able to ride a bicycle to the mall where he was employed. In the morning, he averaged 20 mph. Later that day, he rode home into a stiff headwind and, consequently, averaged only 10 mph on teh return trip. What was his average speed for the round trip?
C'mon, this is simple algebra. Can you seriously not figure this one out on your own? No wonder the US keeps sucking at math compared to other countries...