there r 8 bags of rice looking alike, 7 of which hav equal weight & 1 is slightly heavier . thg weighing balance is of unlimited capacity. using this balance, the min. no. of weighin required to identify the heavier bag is

• in 2 weighing you can get heavier one.
  Divide in groups of 3,3,2.
  
• 12 years agoHelpfull: Yes(3) No(3)
• min. no. of weighing to identify = 4
  total bag= 16= 2^4
• 12 years agoHelpfull: Yes(0) No(2)
• min. no. of weighing to identify = 2
  total bag= 8< 3^2
• 12 years agoHelpfull: Yes(0) No(0)
• Two times weighting is sufficient. Take 3 + 3. If unequal take the heaviest and test two of them. If unequal it is the heaviest, otherwise the third one. If the first weighting was equal than test the two untested and take the heaviest.
• 10 years agoHelpfull: Yes(0) No(0)