Question: ( a ) Suppose at t = 0 , the inputs to a 4 bit adder are changed to ( 1 1 0 0 )

(a) Suppose at t=0, the inputs to a 4 bit adder are changed to (1100)2 and (0100)2 and input carry
to the adder is set to 1. Compute the time delay required to produce the result if delays for x-OR,
AND, OR gates are 20ns,15ns,10ns, respectively. Assume the inputs to the adder are initially
reset to 0
( a ) Suppose at t = 0 , the inputs to a 4 bit

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