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A three digit decimal number requires ________ for representation in the conventional BCD format.

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A three digit decimal number requires ________ for representation in the conventional BCD format.

(a) 3 bits

(b) 6 bits

(c) 12 bits

(d) 24 bits

This question was addressed to me during an interview for a job.

This intriguing question originated from Binary Coded Decimal(BCD) in division Number System and Codes of Digital Circuits

1 Answer

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Best answer
Correct answer is (c) 12 bits

For explanation: The number of bits needed to represent a given decimal number is always greater than the number of bits required for a straight binary encoding of the same. Hence, a three digit decimal number requires 12 bits for representation in BCD format.

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