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Question

The octal equivalence of 111010 is

A
81
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B
72
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C
71
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D
None of above
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Solution

The correct option is B 72

The octal equivalence of 111010 is 72.

The octal numeral system, or oct for short, is the base-8 number system, and uses the digits 0 to 7. Octal numerals can be made from binary numerals by grouping consecutive binary digits into groups of three (starting from the right).

It comes from the Latin word for eight. The octal numbering system uses the numerals 0-1-2-3-4-5-6-7. In computing environments, it is commonly used as a shorter representation of binary numbers by grouping binary digits into threes. The chmod command in Linux or UNIX uses octal to assign file permissions.

Binary and Octal. In 1679, Gottfried Leibniz invented the binary numeral system, and published the first information about it in his article "Explication de l'Arithmétique Binaire".


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