What could be the maximum value of a single digit in an octal number system?
Answer: Option C
The maximum value in any number system is one less than the value of the base. The base in an octal number system is 8, therefore, the maximum value of the single digit is 7. It takes digits from 0 to 7.
Octal subtraction of (232)8 from (417)8 will give:
Answer: Option A
Octal subtraction is done as follows: 417 – 232 ________ 165 The octal subtraction is the same as that of any other number system. The only difference is, like in a decimal number system, we borrow a group of 10, in a binary system we borrow a group of 2, in an octal number system, we borrow in groups of 8.