first, compare 6 and another 6. they must have difference.
8 K$ \: \8 P, m& e) A7 j% hsecond, divide those 6 heavier one into two, each has 3. u will find difference again.* T* s% Z( A/ A0 Y3 E& I
third time, if u put 2 and they are equal, u will know the different one.
9 Q9 m# E2 g3 Gso easy.... |