The Great Race
(from Mathline)

Tortisha and Harry were arguing about who could run the fastest. To end the dispute, they decided to have a race. Harry was so sure that he was faster than Tortisha that he said, “I'll give you a 2 mile head start and still beat you in the race.” If Harry runs 3/4 mile every 6 minutes and Tortisha runs 1/2 mile every 5 minutes, who will win the race?