Question

Kevin and sam are having a competition on their bikes to see who can ride at a faster rate. kevin rides 600 meters in 45 seconds while same rides 800 meters in 55 seconds which choice best describes who is the faster rider?

A. kevin he rides 10 second faster than sam
B.kevin he rides 13.33 meters per second
C.Sam he rides 800 meters total which is 200 more than Kevin
D.Sam he rides 14.5 meters per second which is over a meter per second faster than kevin

Answer 1

The formula for speed is s=d/t, so Kevin’s speed would be 13.33m/s, and Sam’s speed would be 14.5544m/s, meaning Sam is the faster rider. From this, I would say that D is the best choice that describes who is the faster rider as it shows how Sam travels over a metre faster than Kevin.

Answer 2

D.Sam he rides 14.5 meters per second which is over a meter per second faster than kevin

Explanation:

Kevin:

Distance = 600m

Time = 45s

Speed = Distance/time = 600/45 = 13.33m/s

Sam:

Distance = 800m

Time = 55s

Speed = 800/55 = 14.54m/s

Therefore option D will be the answer