Two workers can paint 800 meters of trim in 5 hours. How many meters of trim can be painted by 4 workers in 2 hours?
one worker paints 400 meters in 5 hours
so one worker does 80 meters/hour
80 m/wh * 4 w * 2 h = 640 m
so one worker does 80 meters/hour
80 m/wh * 4 w * 2 h = 640 m