Question

Which speed is the fastest?

Answer 1

A.) 18 feet in 20 minutes 
B.) 90 feet in 2.5 hours
C.) 20 yards in 1.5 hours
D.) 3.6 yards in 15 minutes

A) 18/20=0.9 ft per min
B) 2.5 hours equals 150 minutes .                    90/150=0.6 ft per min
C) 20 yds = 60 ft       1.5 hours  = 90 minutes   60/90≈0.67 ft per min
D) 3.6 yds = 10.8 ft    10.8/15=0.72


Therefore the fastest would be 0.6 ft per minute therefore, choice
B) 90 feet in 2.5 hours