A mother has 3 babies – Usha, Nisha and Eesha. If Usha is sleeping, Eesha is drinking milk. If Nisha is not sleeping, Eesha is not drinking. It never happens that both Usha and Nisha are sleeping. Father concludes that Usha never sleeps. Mother concludes that Nisha never sleeps. Nurse concludes that Eesha always drinks. Who has made a correct deduction?

• mother is correct..
  
• 11 years agoHelpfull: Yes(10) No(3)
• usha sleeping-esha drinking milk-nisha not sleeping since nisha and usha cnt sleep at the same time,
  esha not drinking milk-nisha is not sleeping,
  so mother is right
• 11 years agoHelpfull: Yes(8) No(9)
• First we should understand that Usha, Nisha and Easha are all babies. Babies do sleep the maximum time and they don’t go without sleep at all. Now let us see how it works out.
  a) Easha drinks milk when Usha sleeps.
  b) If Nisha is awake Easha doesn’t drink milk.
  c) It never happens that both Usha and Nisha are sleeping.
  Since we know the babies do sleep, both Nisha and Usha also sleep. When either of them sleep Easha drinks Milk. From the three observations cited, the observation of the father and the mother are wrong and the nurse is correct.
• 11 years agoHelpfull: Yes(3) No(3)
• father is correct since usha and nisha never happen to sleep at the same time and make it in the following way
  Usha Nisha Esha
  sleeping drinking milk
  not sleeping not drinking milk
  not sleeping not sleeping not drinking milk
  not sleeping sleeping can/cant drink milk
• 11 years agoHelpfull: Yes(2) No(4)
• usha nisha esha.
  notsleeping sleeping drinking/not drinking, drinking(not controversial)
  sleeeping notsleeping drinking, not drinking(controversial)
  notsleeping notsleeping drinking/not drinking,not drinking(not controversial)
  hence usha never sleep. father makes right
• 11 years agoHelpfull: Yes(2) No(1)
• hello..... which answer is correct....
• 11 years agoHelpfull: Yes(2) No(0)
• ans is grand father..... bcoz son father is father.... fathers father is grand father.... simple.... if anything z wrong den the given question is wrong... all of u folks verify... any doubts .. nithinitheshkumar@gmail.com
• 10 years agoHelpfull: Yes(1) No(2)