Find the heavier ball puzzle

Given a set of 9 balls, which appear exactly the same and weigh the same amount except for one ball which is heavier than the others. Find that ball using a balance with minimum number of weighs The solution is to divide the set into 3 equal sets and use the balance for for 2 times to find the heavier ball. This video explains the solution to the balls puzzle with aid of visualization Website: http://www.ideserve.co.in Facebook: https://www.facebook.com/IDeserve.co.in