1) Consider two tumblers, the first containing Water and next contains coffee. Suppose you take one spoon of water out of the first tumbler and pour it into the second tumbler. After moving you take one spoon of the mixture from the second tumbler and pour it back into the first tumbler . Which one of the following statement holds now?
a) There is less coffee in the first tumbler than water in the second tumblers
b) There is more coffee in the firs tumbler than water in the second tumbler
c) There is as much coffee in the first tumbler as there is water in the second tumbler
d)None of the statements holds true

• According to me the answer option should be (c)
  Reason :
  Let there be 100 ml of water and 100 ml of coffee initially .
  wc = water content
  cc = coffee content
  
  First tumbler Second Tumbler
  wc cc wc cc
  initially 100 0 0 100
  after 1 move 99 0 1 100
  
  1 spoon of second tumbler now contain 1/101 water and 100/101 of coffee
  
  after second move
  
  First tumbler Second Tumbler
  wc cc wc cc
  after second move 99+1/101 100/101 1-1/101 100-100/101
  = 10000/101 100/101 100/101 10000/101
  
  So answer option (c) ..
• 13 years agoHelpfull: Yes(63) No(11)
• 1st trumbler
  w=10 c=0
  2nd trumbler
  w=0 c=10
  After 1st mooving
  1st trumbler
  w=9 c=0
  2nd trumbler
  w=1 c=10
  during moving mixture from 2nd one to 1st one
  one spn contain w=1/11,c=10/11
  1st trumbler
  w=(9+1/11)=100/11
  c=10/11*****
  2nd trumbler
  w=(1-1/11)=10/11*****
  c=10-10/11=100/11
  So ans is 'c'
• 13 years agoHelpfull: Yes(31) No(8)
• There is as much coffee in the first tumbler as there is water in the second tumbler
• 13 years agoHelpfull: Yes(28) No(16)
• a
  there is less coffee in the first tumbler than water
• 13 years agoHelpfull: Yes(22) No(30)
• pls somebody explain clearly....
• 13 years agoHelpfull: Yes(15) No(5)
• a) there is less coffee in the first tumbler than water in second tumbler as at the beginning when process started water was poured and it was not mixed with coffee
• 13 years agoHelpfull: Yes(12) No(18)
• c)
• 13 years agoHelpfull: Yes(11) No(11)
• when we pouring water from first tumbler to second then it is pure and when we pouring coffee from second to first then it contain some water also.
  so coffee in first tumble is less than water in second
• 13 years agoHelpfull: Yes(10) No(13)
• pls anyone explain ans with logic
• 13 years agoHelpfull: Yes(8) No(1)
• initially, 1st tumbler--> W
  2nd tumbler--> C
  
  secondly, 1st tumbler--> W-w
  2nd tumbler--> C+w
  
  thirdly, 1st tumbler--> (W-w)+(c+w)=>W+c
  2nd tumbler--> (C+w)-(c+w)=>C-c
  
  therefore,ans is c) there is as much cofee in the first tumbler as there is water in the second..
• 11 years agoHelpfull: Yes(4) No(2)
• we cant say anything so ans is d)
• 13 years agoHelpfull: Yes(3) No(17)
• sorry according to my equations....the answer is b) and not c).
• 11 years agoHelpfull: Yes(3) No(4)