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4 Answers

Best answer
2 votes
2 votes

Mux 4x1 o/p: 0.AcBc    + 1.AcB + 0.ABc +  A .AB (assume as X)

or, X = 1.AcB+ A .AB

or, X = AcB+AB

or, X = B

Mux 2x1 o/p: Y=X. Cc  +  B. C  (since X=B)

OR, Y = BCc  +  B. C = B (OPTION D~~~~~ANSWER)

selected by
1 votes
1 votes
The output for 4x1

A'B+AB

=B

This will serve as input for 2x1

Therefore output for 2x1

BC' + BC

=B

thereofre answer is B i.e. option D
–1 votes
–1 votes

It is clear by truth table that answer is (B)  as Y matches with column (AC'+BC). 

Answer:

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