Posted by Anonymous on Saturday, September 3, 2011 at 10:54pm.
the addition of 11 numbers is 66.from them the avarage of 5 numbers is 3.and the avarage of last 5 numbers is 9. what is the 6th numbers?

statistics  Mgraph, Saturday, September 3, 2011 at 10:58pm
665*35*9