The contrapositive of $(p \vee q) \Rightarrow r$ is

Let $p$ and $q$ be two statements.Then $\sim( p \wedge( p \Rightarrow \sim q ))$ is equivalent to

The Boolean expression $\left(\sim\left(p^{\wedge} q\right)\right) \vee q$ is equivalent to

Which Venn diagram represent the truth of the statements “No child is naughty”

Where $U$ = Universal set of human beings, $C$ = Set of children, $N$ = Set of naughty persons

Let,$p$ : Ramesh listens to music.

$q :$ Ramesh is out of his village

$r :$ It is Sunday

$s :$ It is Saturday

Then the statement "Ramesh listens to music only if he is in his village and it is Sunday or Saturday"can be expressed as.