JEE Main 2021 (Online) 20th July Evening Shift | Mathematical Reasoning Question 60 | Mathematics

Consider the following three statements :

(A) If 3 + 3 = 7 then 4 + 3 = 8

(B) If 5 + 3 = 8 then earth is flat.

(C) If both (A) and (B) are true then 5 + 6 = 17.

Then, which of the following statements is correct?

(A) is false, but (B) and (C) re true

(A) and (C) are true while (B) is false

(A) is true while (B) and (C) are false

(A) and (B) are false while (C) is true

JEE Main 2021 (Online) 20th July Morning Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

The Boolean expression $$(p \wedge \sim q) \Rightarrow (q \vee \sim p)$$ is equivalent to :

$$q \Rightarrow p$$

$$p \Rightarrow q$$

$$ \sim q \Rightarrow p$$

$$p \Rightarrow \, \sim q$$

JEE Main 2021 (Online) 18th March Evening Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

If P and Q are two statements, then which of the following compound statement is a tautology?

((P $$ \Rightarrow $$ Q) $$ \wedge $$ $$ \sim $$ Q) $$ \Rightarrow $$ (P $$ \wedge $$ Q)

((P $$ \Rightarrow $$ Q) $$ \wedge $$ $$ \sim $$ Q) $$ \Rightarrow $$ Q

((P $$ \Rightarrow $$ Q) $$ \wedge $$ $$ \sim $$ Q) $$ \Rightarrow $$ P

((P $$ \Rightarrow $$ Q) $$ \wedge $$ $$ \sim $$ Q) $$ \Rightarrow $$ $$ \sim $$ P

JEE Main 2021 (Online) 17th March Evening Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

If the Boolean expression $$(p \wedge q) \odot (p \otimes q)$$ is a tautology, then $$ \odot $$ and $$ \otimes $$ are respectively given by :

$$ \vee , \to $$

$$ \to $$, $$ \to $$

$$ \wedge $$, $$ \vee $$

$$ \wedge $$, $$ \to $$

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