Digital Logic - Number representations and computer arithmetic

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31. If (x567)8+(12yx 5)8=(71yx)8, then values of x and y are

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Option : C
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32. Which of the following is the binary representation of the hexadecimal number 3B7F?

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Option : B
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33. In 2's complement representation, a certain negative number -N is 1011. The representation of +N is

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Option : B
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34. The expression for sum of A, B in the half adder is given by

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Option : C
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35. Which of the following is true about BCD ?

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Option : D
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Number representations and computer arithmetic

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