Compare the motion of two geese. Which goose was moving at a higher speed?

 - a goose that moved 430kilometers in 10hours
 - a goose that moved 440kilometers in 10hours
Look at the distance each goose moved and the time it took to move that distance.
One goose moved 440 kilometers in 10 hours.
The other goose moved 430 kilometers in 10 hours.
Notice that each goose spent the same amount of time moving. The goose that moved 440 kilometers moved a farther distance in that time. So, that goose must have moved at a higher speed.