Gate CS-2014-3 Question Paper With Solutions

Q. 11 Consider the following statements:

  P: Good mobile phones are not cheap
  Q: Cheap mobile phones are not good

  L: P implies Q
  M: Q implies P
  N: P is equivalent to Q

Which one of the following about L, M and N is CORRECT?

(A) Only L is TRUE

(B) Only M is TRUE

(C) Only N is TRUE

(D) L, M and N are TRUE

Answer: (D)

Explanation:

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