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Which of the following represents the binary equivalent of the decimal number 23?

A01011
B10111 ✓ Correct
C10011
DNone of the above
Correct answer: (B) 10111
Explanation

The decimal number 23 in binary is 10111, since 16 plus 4 plus 2 plus 1 equals 23.

The pattern 01011 equals 11 in decimal, not 23.

The pattern 10011 equals 19 in decimal, not 23.

Since a correct pattern exists, none of the above does not apply.

Each binary place stands for a power of two that is added together.

Add-on: 23 can also be written as the hexadecimal value 17.

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