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Exam Questions Papers - Engineering

Q1:

The two numbers represent in signed 2's complement form are P = 11101101 and Q = 111001110. If Q subtracted from P, the value obtained in signed 2's complement form is

A 100000111

B 00000111

C 11111001

D 111111001

ANS:C - 11111001

P = 11101101 = - 25 Q = 11100110 = - 18 Thus P - Q = - 25 - (- 18) = - 7 Thus '- 7's two complement representation is 11111001.