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ISRO | ISRO CS 2020 | Question 9

  • Last Updated : 03 Sep, 2020

Following Multiplexer circuit is equivalent to

(A) Sum equation of full adder
(B) Carry equation of full adder
(C) Borrow equation for full subtractor
(D) Difference equation of a full subtractor


Answer: (A) (D)

Explanation: According to given Multiplexer,

Y = A′B′C+A′BC′+AB′C′+ABC
Y = A⊕B⊕C 
Y = Σm(1, 2, 4, 7)

Which is equivalent to sum equation of full adder and also difference equation of a full subtractor.

Both option (A) and (D) are correct.

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