There are 6 beer bottle nd one is poisoned. we have mice who will die within 14 hrs after drinkin poisned beer. In 24 hrs we have to find poisoned beer bottle. How many no of mice we require to find out poisoned bottle.

options
a) 6
b) 4
c) 3
d) 1

• The answer is 4 as "Jeffrey" has said
  
  Mouse 1 drinks= 1,2,3 Mouse 2 = 4,5,6 Mouse 3 = 1,4 Mouse 4 = 3, 6
  
  Bottle 1 poisoned M1 & M3 Die
  Bottle 2 poisoned M1 dies,
  Bottle 3 poisoned M1 & M4 die,
  Bottle 4 poisoned M2 & M3 die,
  Bottle 5 poisoned M2 dies,
  Bottle 6 poisoned M2 & M4 die.
  As each outcome is different for each bottle you know immediately which is the poisoned bottle.
  
  IT IS NOT "1"
  The question says "within" 14 hours. It does not state "after" 14 hours. Say you gave the mouse a drop from each bottle in hourly intervals hour 1 through to hour 6 and then the mouse dropped dead after 9 hours - which bottle is poisoned? You can't possibly tell!
• 13 years agoHelpfull: Yes(7) No(6)
• bottle1 : mouse1
  bottle2 : mouse2
  bottle3 : mouse3
  bottle4 : mouse1 and mouse2
  bottle5 : mouse2 and mouse3
  bottle6 : mouse3 and mouse1.........so answer is 3mice required to test the poisoned bottle
  
• 13 years agoHelpfull: Yes(3) No(0)
• answer will be c
  
  3
• 13 years agoHelpfull: Yes(0) No(1)