All people in a certain island are either ‘Knights’ or ‘Knaves’ and each…
GATE · 2017 · ME · Set 2 · General Aptitude
All people in a certain island are either ‘Knights’ or ‘Knaves’ and each person knows every other person’s identity. Knights NEVER lie, and knaves ALWAYS lie.
P says “Both of us are knights”. Q says “None of us are knaves”.
Which one of the following can be logically inferred from the above?
- A.
Both P and Q are knights
- B.
P is a knight; Q is a knave
- C.
Both P and Q are knaves
- D.
The identities of P, Q cannot be determined
Attempted by 1 students.
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