Question

Ryan runs 3 miles in 28 minutes. at the same rate, how many miles would he run in 42 minutes?

Answer 1

If 3mile=28 min
x mile=42 min
cross multiply
x=3/28
therefore if 3/28=1 min
then x mile= 42 min
cross multiply
42 x 3/28 =21 x 3/14
                =3 x 3/1
                =9
The answer is 9 miles