Given 8 different balls among which one ball is heavier than others.
Find which ball is heaviest in just two iterations

Note: Use hands to measure .picking up balls is considered as one iteration

• 1. take 3 balls in each hand. the heavier ball is either in one hand or in the two balls left.
  2. take 1 ball in each hand and you can easily find.
• 9 years agoHelpfull: Yes(4) No(1)
• 1)divide 8 balls into two hands...one of the hands weighs high...take those 4 balls
  2)take 4 balls with 2 in each hand....one of the hands weighs different..Now you can find the ball from the two
  
• 9 years agoHelpfull: Yes(0) No(4)
• x1 x2 x3 x4 vs y1 y2 y3 y4 and 0 0 0 0 0
  
  x1 y2 x2 vs y1 x3 0 (note the swap)
  
  * you figure out the third
  
  - or -
  
  0 0 0 0 vs 0 0 0 0 and x1 x2 x3 x4 x5
  
  x1 x2 vs x3 0
  
  x1 0 vs x2 0 (or sub-cases)
• 9 years agoHelpfull: Yes(0) No(4)