engineering recuitment BEL Probationary Engineers Mock Test 2025 Digital Electronics

In a 4-bit binary adder, if the inputs are A = 1101 and B = 1011 with an initial carry of 0, what will be the sum and final carry? 

1
Sum: 10010, Carry: 0 
2
Sum: 1000, Carry: 1 
3
Sum: 1100, Carry: 1
4
Sum: 11000, Carry: 0
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