Question

Brook drove a total of 180 miles in 3 hours. Diederick drove a total of 160 miles in 4 hours.

Which explanation correctly describes a way to calculate how many miles per hour faster Brook drove than Diederick?

Answer 1

Actually, DIEDERICK drove faster than BROOK. What you can do to find out the answer, is divide. Brook drove 180 miles in 3 hours, so divide 180 by 3, and you get 60. If you divide 160 by 4, you get 40. So, that means that Diederick drove faster than Brook.