Question

To get output ${}^{\prime }{1}^{\prime }$ and $R$, for the given logic gate circuit the input values must be

• A. $X=0,Y=1$
• B. $X=1,Y=1$
• C. $X=0,Y=0$
• D. $X=1,Y=0$

Answer 1

The correct option is D $X=1,Y=0$

$p=\overline{x}+y$
$Q=\overline{\overline{y}.x}=y+\overline{x}$
$O/P=\overline{P+Q}$
To make $O/P$
$P+Q$ must be ${}^{\prime }{O}^{\prime }$
So, $y=0$
$x=1$.