Compare the motion of two bicycles. Which bicycle was moving at a lower speed?

 - a bicycle that moved 150miles in 5hours
 - a bicycle that moved 55miles in 5hours
Look at the distance each bicycle moved and the time it took to move that distance.
One bicycle moved 55 miles in 5 hours.
The other bicycle moved 150 miles in 5 hours.
Notice that each bicycle spent the same amount of time moving. The bicycle that moved 55 miles moved a shorter distance in that time. So, that bicycle must have moved at a lower speed.