Ask Question
18 March, 15:58

Ethan forgot the five-digit code to the lock on his briefcase. However, he did remember that the first digit is 6 and the last digit is either 8 or 4. The middle digits could be any number from 0 through 9 inclusive. What is the greatest number of five-digit codes Ethan might have to try in order to to open his briefcase?

+2
Answers (1)
  1. 18 March, 17:18
    0
    The 1st digit is known. (times 1) The last, (5th digit is of 2 choices (times 2). The middle 3 numbers are of 10 choices (0-9) (times 10 for each).

    1 * 10 * 10 * 10 * 2 = 2,000 five-digit codes
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Ethan forgot the five-digit code to the lock on his briefcase. However, he did remember that the first digit is 6 and the last digit is ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers