1.

Octal subtraction of (232)8 from (417)8 will give______________(a) 165(b) 185(c) 815(d) 516I got this question during an online interview.My question comes from The Octal Number System in portion Number Systems of Computer Fundamentals

Answer»

Right choice is (a) 165

Easy explanation: 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.



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