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Question

How many distinct symbols are used in the hexadecimal number system?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
16

Hexadecimal Symbols Count

The hexadecimal number system is a base-16 system. This means it uses 16 distinct symbols to represent numbers.

Symbols Used

These symbols consist of the digits 0 through 9 and the letters A through F.

  • Digits: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 (10 symbols)
  • Letters: A, B, C, D, E, F (representing values 10 to 15) (6 symbols)

Total Distinct Symbols

Adding the digits and letters together gives the total number of distinct symbols:

$ 10 (\text{digits}) + 6 (\text{letters}) = 16 \text{ distinct symbols} $

Therefore, the hexadecimal number system uses 16 distinct symbols.

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