ISRO | ISRO CS 2016 | Question 4

The minimum number of NAND gates required to implement the Boolean function A + AB’+ AB’C is equal to
(A) 0
(B) 1
(C) 4
(D) 7

Answer: (A)
Explanation: A + AB’+ AB’C
=A(1+B’) + AB’C
=A + AB’C
=A(1+B’C)
=A
So, no extra gate is required. Correct option is (A)
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