How many characters does a message contain written using a 16-character alphabet, if its size is 140 bits.

univerkov | December 12, 2020 | education

If the alphabet has 16 characters, then its cardinality is:
16 = 2 ^ 4 = 4 bits
Message weight = power * number of characters
Then the number of characters = message weight / power
number of characters = 140/4 = 35 characters

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