Which of the following is not a positional number system? a) Roman Number System b) Octal Number System c) Binary Number System d) Hexadecimal Number System
Answer: a Explanation: The Roman number system isn’t a positional number system since , it uses symbols to represent numbers. The octal number system uses digits from 0-7 , the binary number system uses digits from 0-1 whereas, the hexadecimal number system uses digits from 0-15