In Excess-3 Code, why is the code considered self-complementing?

Bihar STET · PGT (Paper 2) · Computer Science · 2025

1. A.

   Because it can be converted to ASCII directly

2. B.

   Because the 9’s complement of each digit can be obtained by inverting its bits

3. C.

   Because it is used for financial calculations

4. D.

   Because it is a form of Gray code

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