GATE | Sudo GATE 2020 Mock III (24 January 2019) | Question 57

If A and B are input and Bin is carry input for a Full Adder, then which of the following is the correct option for Bout ?
(A) Bout= AB + Bin(A⊙B)
(B) Bout= A’B + Bin(A⊕B)
(C) Bout= AB + ABin + BBin
(D) Bout= A’B + A’Bin + BBin

Answer: (D)

Explanation: For a Full subtractor.
Bout=A’B + A’Bin + BBin

Option (D) is correct.

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