Posted by Sam on .
Adam left the airport and traveled toward the Capital. Elisa left one hour later traveling 50 mph in an effort to catch up to Adam. After traveling for 4 hours Elisa finally caught up. What was Adam's average speed?

Math 
Henry,
d1 = d2
V*(4+1) = 50*4 = 200
5V = 200
V = 40 Mi/h = Adam's speed.