Question

Ms. Cooper drove 18 miles in 31 hour. What is her speed in miles per hour?

Answer 1

use the rule of 3 simple

18 mls ---- 31 h
x mls ----- 1 h
---------------------

x = 1*18/31

x = 18/31

her speed will be 18/31 miles per hour

Answer 2

1.72
31 Divided by 18 =p