Ralph can paint a room in 2 hours, and joy can paint the same room in 3 hours. if they work together, how long would it take them to paint the room?

In the diagram, points d and e are marked by drawing arcs of equal size centered at b such that the arcs intersect ba and bc. then, intersecting arcs of equal size are drawn centered at points d and e. point p is located at the intersection of these arcs. based on this construction, m , and m