There is nine ball of same co lour same size but one ball have less weight then other eight ball in how many attempt you will distinguish that ball.

• You divide nine balls into 3,3,3. Weigh any of the set. If a set is found less weight, you can get the 3 balls. If they weigh same, you get get the 3 balls from 3rd set. Again same process in those final 3 balls. So total 2 times. Or simply get the total balls as the power of 3. The power will be the ans Its 3^2. 2 is ans.
• 13 years agoHelpfull: Yes(4) No(0)
• 2 time
  suppose a bag has 3 ball b has 3 ball and c has 3 ball
  measure a and b the u got three those bag who has defected ball
  then again devided in to 1 1 1 first two measure u see ur foud ur answer
  ie 2
  
• 13 years agoHelpfull: Yes(1) No(0)
• 2 ATTEMPTS
  
  NINE BALLS CAN BE SPLIT INTO 3 3 3. TAKE ANY 2 SETS AND WEIGH THEM. IF THEY BOTH ARE EQUAL THE THIRD SET HAS A LESS WEIGHT BALL. OTHERWISE ONE THE SELECTED WILL HAVE.
  NOW TAKE THE SET WHICH HAS A LESS WEIGHT BALL. SPLIT IT INTO 1 1 1. WEIGH ANY TWO OF THEM. IN THE SAME WAY WE CAN FIND OF THESE THREE.
  
  THUS 2 ATTEMPTS (3,3,3 .... 1,1,1)
• 12 years agoHelpfull: Yes(1) No(0)
• 5!!!
  1st take 4 and 4
  then take greater set and now try this individual 4 balls wit that 1 remainin ball...
• 12 years agoHelpfull: Yes(0) No(0)