The decimal number 395, when converted into binary occupies _____ binary…
2017
The decimal number 395, when converted into binary occupies _____ binary digits, whereas when it is represented using BCD codes, occupies _____ binary digits.
- A.
12 ; 9
- B.
7 ; 12
- C.
9 ; 12
- D.
12 ; 7
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Correct answer: C
Binary: For 395, since 28 = 256 and 29 = 512, it requires 9 bits (specifically, 395 = 1100010112).
BCD: Binary Coded Decimal represents each decimal digit (3, 9, 5) using a distinct 4-bit block. Total bits = 3 x 4 = 12 bits (0011 1001 0101BCD).
Thus, the correct sequence is 9 ; 12. The correct option is C.