3/22
2/91
1/22
2/77

**
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.

Since we have 5 red ball out of 15, so probability of getting all three ball red is

5C3/15C3=10/(5.7.13)=2/91 where C denotes combination and . indicates multiplication