There are 6561 balls out of them 1 is heavy.Find the min. no. of times the balls have to be weighed for finding out the heavy ball.

One Answer on this Question

1. 6561 → 6560/2 [-1]
   3280
   1640
   820
   410
   205 [+1] =206
   103 → [-1] = 102
   51 [+1] = 52
   26
   13 [-1] = 12
   6
   3 [+1] 4
   2
   1

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