What is the answer?

Question

To skate 100 meters in 20 seconds, a skater must skate at a speed of ____ .

Please hurry!!!!

Answer 1

100 meters in 20 seconds

is

100 meters per 20 seconds

is

 5 meters per second                    [divide both by 20]

is

 300 meters per minute                [multiply both by 60]

 

The point of "unit value" is to express "How many of these for one of those?"