Question

For the given logic gate circuit, to get output as $1$ at $R,$ find the input of $X,$ if input value of $Y$ is zero.

Answer 1

Answer: 1

The given circuit can be drawn as shown in the figure given below

Truth table for this given logic gate is
$$\begin{gathered} Giveninputs \\ \begin{array}{ccccccc}intheoptions& & & & & & \\ X& Y& A_1& A_2& A_3& A_4& R\\ 0& 0& 1& 1& 1& 1& 0\\ 1& 0& 0& 1& 0& 0& 1\\ 1& 1& 0& 0& 1& 1& 0\\ 0& 1& 1& 0& 1& 1& 0\\ & & & & & & \end{array} \end{gathered}$$
So to get output $R=1,$ inputs must be $X=1$ and $Y=0$