ISRO2011-47

Question

The output expression of the following gate network is

• A. $\text{X.Y} + \overline{\text{X}} . \overline{\text{Y}}$
• B. $\text{X.Y + X.Y}$
• C. $\text{X.Y}$
• D. $\text{X + Y}$

Answer 1

Hence, Option(A) X.Y + X'.Y' is the correct choice.

Answer 2

Output of above network = (X AND Y ) OR ( X' AND Y')

                                        = XY + X'Y'

Ans - A

Answer 3

ans is (a)