There are 27 boxes.Each has "A" white balls and "B" black balls.You randomly take out a ball from one box and put it in the next one.Then take one from that box and put it it in it's next one.What is the probability of picking a white ball from the last box?
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!