Discrete Mathematics MCQs | Page - 5

Dear candidates you will find MCQ questions of Discrete Mathematics here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

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Mr. Dubey • 100.69K Points
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Q. Let P: I am in Delhi.; Q: Delhi is clean.; then q ^ p(q and p) is?

  • (A) delhi is clean and i am in delhi
  • (B) delhi is not clean or i am in delhi
  • (C) i am in delhi and delhi is not clean
  • (D) delhi is clean but i am in mumbai
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Mr. Dubey • 100.69K Points
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Q. Let P: This is a great website, Q: You should not come back here. Then ‘This is a great website and you should come back here.’ is best represented by?

  • (A) ~p v ~q
  • (B) p ∧ ~q
  • (C) p v q
  • (D) p ∧ q
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Mr. Dubey • 100.69K Points
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Q. Let P: We should be honest., Q: We should be dedicated., R: We should be overconfident. Then ‘We should be honest or dedicated but not overconfident.’ is best represented by?

  • (A) ~p v ~q v r
  • (B) p ∧ ~q ∧ r
  • (C) p v q ∧ r
  • (D) p v q ∧ ~r
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Mr. Dubey • 100.69K Points
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Q. The compound propositions p and q are called logically equivalent if is a tautology.

  • (A) p ↔ q
  • (B) p → q
  • (C) ¬ (p ∨ q)
  • (D) ¬p ∨ ¬q
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Mr. Dubey • 100.69K Points
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Q. Which of the following statement is correct?

  • (A) p ∨ q ≡ q ∨ p
  • (B) ¬(p ∧ q) ≡ ¬p ∨ ¬q
  • (C) (p ∨ q) ∨ r ≡ p ∨ (q ∨ r)
  • (D) all of mentioned
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Mr. Dubey • 100.69K Points
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Q. p ↔ q is logically equivalent to

  • (A) (p → q) → (q → p)
  • (B) (p → q) ∨ (q → p)
  • (C) (p → q) ∧ (q → p)
  • (D) (p ∧ q) → (q ∧ p)
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Mr. Dubey • 100.69K Points
Coach

Q. (p → q) ∧ (p → r) is logically equivalent to

  • (A) p → (q ∧ r)
  • (B) p → (q ∨ r)
  • (C) p ∧ (q ∨ r)
  • (D) p ∨ (q ∧ r)
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