Mathematics, 02.12.2020 19:30, talannajanis

Counting Principle: A student number system for a county requires
that the student number be 4 characters.
The first 3 characters are any single digit number,
and cannot repeat, and the last character must be a
letter. How many unique student numbers are
possible?

a. 260,000
b. 18,720
c. 131,040
d. 315,160

Answers: 1

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Counting Principle: A student number system for a county requires
that the student number be...