Symbols A to F are used in which one of the following number systems?
ABinary number system
BDecimal number system
CHexadecimal number system ✓ Correct
DOctal number system
Correct answer: (C) Hexadecimal number system
Explanation
The symbols A to F are used in the hexadecimal number system, which is base sixteen.
The binary system uses only the digits 0 and 1.
The decimal system uses digits 0 to 9 and no letters.
The octal system uses only digits 0 to 7.
In hexadecimal A to F stand for the decimal values 10 to 15.
Hexadecimal is widely used to write memory addresses and colour codes compactly.
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