Mikayla can run 2 miles in 12 1/2 minutes. Brie can run 5 miles in 22 1/4 minutes. Who can run faster?

Answer 1

check the time per mile
22.25/4 < 12.5/2

or, just note that Mikayla takes 25 minutes to run only 4 miles,
while Brie runs farther in less time