You are given 6 identical balls of same size and shape two of which are red. two white and two blue. It is known that one ball of each colour weighs 15 gm; while the other weighs 16 gm. Using a two-pan balance only twice how will you separate the balls of 16 gm weight?

(In reply to re: Simple method. by Charlie)

Mea culpa.

Actually my main aim was to try to avoid the sort of table that these problems always end up with. I think the issue you rightly point out is now fixed, but please let me know if you still see difficulties!

Edited on January 10, 2013, 8:44 am

Posted by broll on 2013-01-10 08:29:59