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32 votes
32 votes
A student number system for a county requires that the student number be 5

characters. The first character is a consonant, the second through the fourth characters can be any digit but no digit can repeat and the last character must be a
letter. How many unique student numbers are possible?

546,000 student numbers
393,120 student numbers
302,400 student numbers
468,000 student numbers

User Sathya Baman
by
3.3k points

1 Answer

26 votes
26 votes

Answer:

B

Explanation:

First Character: 21 consonant

2nd 3rd and 4th: 10* 9* 8 = 720

Last Character: 26

Total Ways 21 * 720 * 26 = 393120

User Trajan
by
3.3k points