Question

There are 10 boxes each one is numbered as 1 ,2 ...10; each have 10 ball of equal weight . one of them box contains the defective balls . how can you find out the box which contains the defective balls .you have to weight only once

Answer 1

When v will pick up the box v will get 2 know that which box is more heavier or lighter..... and v will weigh that box....

Hope it is right...

^_^