Originally Posted by Andy_K

You were supposed to "do the ****ing math." I'm going to have to take points off because you didn't show your work. If you want full credit, try again and estimate the time spent at stop signs and traffic lights if the OP's average speed is ~20 mph when moving. Don't forget to assume an average speed around 10 mph while ascending that 400 foot climb and 30 mph while descending the other side.