City planners use a number line to place landmarks along a new street. Each unit of the number line represents 200 feet. A fountain F is located at coordinate −3 and a plaza P is located at coordinate 21. The city planners place two benches along the street at points that divide the segment from F to P in the ratios 1 to 2 and 3 to 1. What is the distance between the benches?

The distance between the benches is
feet?