If 7 ballerinas dance for 8 hours and lose a total of 20 pounds, how many more ballerinas dancing would it take to lose a total of 20 pounds in only 4 hours if the new dancers lost weight only half as fast as the original 7 ?
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
No explanations have been posted yet. Check back later!