The number of digit 1 present in the binary representation of 3 × 512 + 5 × 64 + 7 × 8 + 3 is:
A. 9
B. 16
C. 8
D. 10
Answer: Option A
A. 9
B. 16
C. 8
D. 10
Answer: Option A
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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