In a room there are only two types of people, namely Type 1 and Type 2. Type 1 people
always tell the truth and Type 2 people always lie. Your give a fair coin to a person in that
room, without knowing which type he is from and tell him to loss it and hide the result from
you till you ask for it. Upon asking, the person replies the following.

“The result of the toss is head if and only if I am telling the truth.”

Which of the following options are correct?

(A) The result is head
(B) The result is tail
(C) If the person is of Type 2, then the result is tail
(D) If the person is of Type 1, then the result is tail

• ans (C).. if the person is of type1, the result will be head if he speaks the truth, this option not present.
  The next case is if the person is of type2, the result is tail, if he speaks the truth, as when he says head, he is telling a lie.
• 9 years agoHelpfull: Yes(0) No(0)
• Correct answer is A.
  The result is head.
  
  This question is asked in GATE2015 and I have matched with the GATE2015 answers provided by GATE2015.
  
• 9 years agoHelpfull: Yes(0) No(0)
• if he's telling lie: he would say "HEAD" not only when he is saying truth but also when he is lying.
  
  (A) The result is head
• 9 years agoHelpfull: Yes(0) No(0)