Answer is (1) 160 km in 2 hours and (2) 16 miles in 12 minutes.
Step by step. 80 km / 1 hour = x km /2 hours Cross multiply = x = 160
The second one requires a little more math. Because we are looking at how far in minutes, we change the rate of 80km in 1 hour to 80 km in 60 minutes. 80 km / 60 = x / 12 Cross multiply 12x = 960 Solve for x by dividing both sides by 12 X = 16
I did the math on a print screen to explain the cross multiply.