GATE | GATE-CS-2002 | Question 15

The 2′ s complement representation of the decimal value – 15 is
(A) 1111
(B) 11111
(C) 111111
(D) 10001

Answer: (D)
Explanation: We have -15₁₀ = 1 1111₂

1’s complement of -15 = 1 0000 (Here, 1 represents negative sign)

2’s complement of -15 = 1 0001

Hence, D is the correct choice.

Please comment below if you find anything wrong in the above post.
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GATE-CS-2002

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