There are 45 cans out of which one is poisoned. If a person tastes very little of this, he will die within 14 hours; so they decided to test it with mice. Given that a mouse dies in 24 hours and you have 24 hours in all to find out the poisoned can, how many mice are required to find the poisoned can?
(a) 44
(b) 29
(c) 6
(d) 5

• I think the answer is option c. 6
  becoz according to formula 2^m>c.
  Where m= mice and c= can.
  so 2^6=64
  64 is exact greater to 45.. so answer will be 6..
• 12 years agoHelpfull: Yes(20) No(2)
• 6...Short trick:-convert 45 into binary digit.Count it's digit..
• 12 years agoHelpfull: Yes(11) No(4)
• 44 mice are required...!!!!!
  question is why 44 mice..
  here is the solution..
  each mice requires 24 hrs for the test and man has 24 hours to carry the test..
  thus he will take 44 mice and deploy them on each can out of 44 can. if 44 doesnt die,the 45th will conatain poison and if 1 dies then that particular can had killer poison
• 12 years agoHelpfull: Yes(11) No(9)
• Hello Keshav! Can you please explain the formula 2^m>c and also the answer?
• 12 years agoHelpfull: Yes(4) No(0)
• 44 mice are required
  
• 12 years agoHelpfull: Yes(3) No(18)
• i didn't get you keshav and praveen ...may u further explain
  
• 12 years agoHelpfull: Yes(2) No(1)