Compare the motion of three cars. Which car was moving at the lowest speed?

 - a car that moved 130kilometers west in 5hours
 - a car that moved 485kilometers east in 5hours
 - a car that moved 460kilometers east in 5hours
Look at the distance each car moved and the time it took to move that distance. The direction each car moved does not affect its speed.
Notice that each car moved for 5 hours. The car that moved 130 kilometers moved the shortest distance in that time. So, that car must have moved at the lowest speed.