1. The problem statement, all variables and given/known data Sylvester is training for a boxing match. He runs due north at an average speed of 16 km/h for the first 8 km and returns to the training camp at an average speed of 10 km/h. Calculate Sylvester's average speed for the run and his average velocity. 2. Relevant equations distance = (speed1+speed2)/2 (time) distance = velocity x time 3. The attempt at a solution I don't know how to go about this when they have not provided the time. Help?