On the 800-meter roundabout, a colorful flag was inserted every 50 meters, and later some colorful flags were added to shorten the interval of colorful flags, and the colorful flag at the starting point did not move. After re-plugging, I found that the colorful flags on all sides did not move. How many meters are the intervals of colored flags now?

800/50= 16

Now the colorful flags are 40 meters apart.