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On addition of 28 and 18 using 2’s complement, we get ____________

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On addition of 28 and 18 using 2’s complement, we get ____________

(a) 00101110

(b) 0101110

(c) 00101111

(d) 1001111

This question was addressed to me during an online interview.

This intriguing question comes from 1’s, 2’s, 9’s & 10’s Complements topic in division Number System and Codes of Digital Circuits

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Correct choice is (b) 0101110

Easiest explanation: Steps for Binary Addition Using 2’s complement:

-> The binary equivalent of the two numbers are obtained and added using the rules of binary addition.

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