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Digital Arithmetic Operations and Circuits - Technical MCQs

Q1:

FC48 – AB91 = ________.

A 5B77

B 5267

C 50B7

D 5077

ANS:C - 50B7

1111 1100 0100 1000
-
1010 1011 1001 0001 ==>(Take 2's Complement).

Now,
1111 1100 0100 1000+
0101 0100 0110 1111
=
0101 0000 1011 0111 ==> 5 0 B 7.