A truck driver drove 120 miles in 1 3/4 hours. What is the speed of the truck in miles per hour.

Answer 1

1 3/4= 7/4

120/(7/4)= 120(4/7)= 480/7= 68 4/7 mph

had it been 120 in 2, then it would have been 120/2 = 60 mph

1 3/4 hours is a little faster than 2 hours,

so 68 4/7 is a little faster than 60 mph