Bike A moves right at 20 km/h and bike B moves left at 10 km/h on a level and straight road. When they are 15 km apart, a bee begins flying at a constant speed of 30 km/h from bike A towards bike B where it immediately turns around and flies back to Bike A. It repeats the back-and-forth trip until the bikes meet and it gets squished between their front wheels. The bee traveled a total distance of:.