A number is expressed in binary two's complement as 10011. Its decimal equivalent value is
A. 19
B. 13
C. -19
D. -13
Answer: Option D
A. 19
B. 13
C. -19
D. -13
Answer: Option D
In which of the following base systems is 123 not a valid number?
A. Base 10
B. Base 16
C. Base 8
D. Base 3
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