COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The 9’s complement of 381 is
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355
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508
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618
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390
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Explanation:
Detailed explanation-1: -To find 9’s complement of a number, we have to subtract each digit of a number from 9. Here, 381 is a three digit number. So, we have to subtract 381 from 999. Hence, the 9’s complement of 381 is 618.
Detailed explanation-2: -The 9’s complement of 012398 is 999999 – 012398 = 987601.
Detailed explanation-3: -10’s complement = 9’s complement + 1 For example, let us take a decimal number 456, 9’s complement of this number will be 999-456 which will be 543.
Detailed explanation-4: -It follows that the 9’s complement of a decimal number is acquired by subtracting each digit from 9. For example, the 9’s complement of 546700 is 999999-546700 = 453299 and the 9’s complement of 12389 is 99999-12389 = 876I0.
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