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On addition of -46 and +28 using 2’s complement, we get ____________

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On addition of -46 and +28 using 2’s complement, we get ____________

(a) -10010

(b) -00101

(c) 01011

(d) 0100101

I had been asked this question in an online quiz.

This interesting question is from 1’s, 2’s, 9’s & 10’s Complements in portion Number System and Codes of Digital Circuits

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Correct answer is (a) -10010

Explanation: The BCD form is written of the two given numbers, in their signed form. After which, normal binary addition is performed.

Augend is 28 and Subtrahend is -46.

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