Question: question 1 a. Hexadecimal digits are formed using either a numeric decimal digit or a letter from A to F. How many possible digits can

question 1

a. Hexadecimal digits are formed using either a numeric decimal digit or a letter from A to F. How many possible digits can be chosen? Did you use the sum rule or the product rule?

b. A combination lock requires three numbers from 1 to 25. How many combinations are possible? Did you use the sum rule or the product rule? (Note that although we use the term combination with locks, order matters.)

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