Consider the following statements :
$P$ : Suman is brilliant
$Q$ : Suman is rich.
$R$ : Suman is honest
the negation of the statement

"Suman is brilliant and dishonest if and only if suman is rich" can be equivalently expressed as

  • [JEE MAIN 2015]
  • A

    $ \sim Q \leftrightarrow \, \sim P \vee R$

  • B

    $ \sim Q \leftrightarrow \, \sim P \wedge R$

  • C

    $ \sim Q \leftrightarrow P\, \vee  \sim R$

  • D

    $ \sim Q \leftrightarrow P\, \wedge  \sim R$

Similar Questions

Which of the following statements is a tautology?

  • [JEE MAIN 2022]

If $p , q$ and $r$ are three propositions, then which of the following combination of truth values of $p , q$ and $r$ makes the logical expression $\{(p \vee q) \wedge((\sim p) \vee r)\} \rightarrow((\sim q) \vee r)$ false ?

  • [JEE MAIN 2023]

$(\sim (\sim p)) \wedge q$ is equal to .........

The statement $[(p \wedge  q) \rightarrow p] \rightarrow (q \wedge  \sim q)$ is

Which of the following statement is a tautology?