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Mr. Dubey • 52.30K Points
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Q. Which of the following combinations of logic gates can decode binary 1101?

(A) one 4-input and gate
(B) one 4-input and gate, one inverter
(C) one 4-input and gate, one or gate
(D) one 4-input nand gate, one inverter
Correct : Option (B)

Explanation: 
 for decoding any number output must be high for that code and this is possible in one 4-

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