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The 9’s complement of 45 is_____________(a) 45(b) 54(c) 64(d) 46I got this question at a job interview.This key question is from BCD in portion Computer Codes of Computer Fundamentals

Answer»

The correct option is (B) 54

The explanation is: The 9’s complement of a NUMBER is obtained by subtracting each digit from 9. Here, 99-45=54. THEREFORE, the 9’s complement is 54.



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