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Hexadecimal Addition of (3A5)16 and (1B2)16 will give :

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Hexadecimal Addition of (3A5)16 and (1B2)16 will give :

(a) 557

(b) 185

(c) 815

(d) 516

I got this question in semester exam.

I'd like to ask this question from The Hexadecimal Number System topic in portion Number Systems of Computer Fundamentals

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The correct choice is (a) 557

Easy explanation: Octal subtraction is done as follows:

    3A5

+  1B2

________

    557

In hexadecimal addition of alphabets, we add the corresponding numbers they represent and then subtract the result from 16, then generate a carry of 1 to the next set of numbers.

Here, 5+2=7

A+B=10+11=21-16=5

3+1+1(carry)=5.

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