Nestor R. answered • 03/07/20

Mathematically-oriented professional with many years of experience

First you should figure out how long it will take them to travel 800 miles nonstop at 70 mph.

To do that, divide 800 mi/70 mph giving 11.43 hours (rounded to 2 decimals).

If lunch takes 30 minutes, which equals 0.5 hour, then add that to 11.43 to get final answer

**11.93 hours**, which is just under 11 hours and 56 minutes.