Which of the following 4-bit numbers equals its 2’s complement?

2023

Which of the following 4-bit numbers equals its 2’s complement?

  1. A.

    1010

  2. B.

    0101

  3. C.

    1000

  4. D.

    More than one of the above

  5. E.

    None of the above

Attempted by 143 students.

Show answer & explanation

Correct answer: C

  • Invert: 0111

  • Add 1: 0111 + 1 = 1000 (Equal to 1000)

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