Answer is 90 miles in 2 hours
Step by step
I like the cross multiply method for this. See attached picture with example.
We know she drove 30 miles / 40 minutes
We want to know “x” miles / 120 minutes ( equivalent of 2 hr)
Put into your equation
30/40 = x / 120
40x = 3600
X = 90 miles in 2 hours
