Rate of Wind Problem #1
http://www.youtube.com/watch?v=cf0oUu04sCM
Rate of Wind Problem #2: A plane flying against the wind flew 270 miles in 3 hours. Flying with the wind, the plane traveled 260 miles in 2 hours. Find the rate of the plane in calm air and the rate of the plane.
http://www.youtube.com/watch?v=P1aghAIDjGc
Rate of Current Problem #2
http://www.youtube.com/watch?v=cy3qjHiNOfs
Rate of Current Problem #3