Question

Bianca drove at 60 miles per hour for 1 1/2 hours. Collin drove 150 miles in 2 1/2 hours and Dale drove 105 miles in 1 1/3 hours. Which statement is true?

Answer 1

Bianca's speed: 60 mph 
Colin's speed: (150)/(2.5) = 60 mph 
Dave's speed: (105)/(7/4) = 60 mph