Majority circuit using basic logic gates

What is the output status of the majority circuit when the inputs A, B, C, D are 1011?
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If IC 7432 and IC 7408 represent quad dual-input OR and AND circuits respectively, then _______number of IC7432 and ____________ number of IC 7408 respectively would be necessary for implementation?
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What would be the Boolean expression for output Y in figure below, if all OR gates are replaced by AND, and vice-versa?
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If the majority circuit is defined as a logic circuit that generates a HIGH output when the majority of its inputs A, B, C and D are LOW, then which of the following Boolean expression defines this circuit?
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The logic circuit that you simulated in figure below is called _____________ circuit.
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