1. The problem statement, all variables and given/known data A boat moves 15.0 km across a lake in 30.0 min. What was the average speed of the boat in kilometers per hour? 2. Relevant equations average speed: d/t 3. The attempt at a solution ok since it is asking kilometers per hour that is the part tha confuses me. i mean i believe that it is 15.0 km/30.0 but it is asking for hour... sooo that where i get lost.