We are given 27 coins of the same denomination; we know that one of them is counterfeit and that it is ligh?

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  1. Of 80 coins of the same denomination, one is conterfeit and lighter than the others. ? Of 80 coins of the same denomination, one is counterfeit and lighter than the others. Identify the counterfeit coin by using a pan balance in no more than four weighings?...
  2. Out of 80 coins, one is counterfeit. What is the minimum number of weighings need to find out the counterfeit? Please explain your answer....
  3. Of 12 coins in a bag 1 is counterfeit and weighs less what is the least weighings to determine the counterfeit? please explain your answer...
  4. In 80 coins 1 coin is counterfeit what is minimum number of weightings to find out counterfeit coin? ...
  5. 13 coins of which 2 may be counterfeit? You are presented with a set of 13 suspect coins. Of these, it is known that the number of counterfeit coins is 0 - 2. All of the counterfeit coins,...