A randomly generated password has four characters. Each character is either A, B, C, D, E or F or a number from 0 - 9. Each char
acter in the password can only be used once. What is the probability that a password has only one number?
A. 5/182
B. 10/91
C. 9/91
D. 9/364
2 answers:
Answer:
The answer is B!!!
Step-by-step explanation:
NON
Answer:
B. 10/91
Step-by-step explanation:
Total passwords:
16C4 × 4!
43680
Passwords with exactly one digit:
6C3 × 10C1 × 4!
4800
Probability
4800/43680
10/91
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