1. The problem statement, all variables and given/known data You walk for 1 min. at a speed of 1.5 m/s and then for 1 min at 4 m/s in a straight line. What is your average speed? 3. The attempt at a solution (1.5 m/s + 4 m/s) / 2= 2.75 m/s Am I right? This is a very simple problem but I just want to double check myself.