A turtle and a rabbit engage in a footraceover a distance of 4.00km. The rabbit runs 0.500km and then stopsfor a 90min nap. Upon awakening, he remembers the race and runstwice as face. Finishing the course at a total time of 1.75hrs.,the rabbit wins the race. Calculate the average speed of therabbit. What was his average speed before he stopped for anap?