Probability 72324

We used the digits 2, 3, 4, 5, and 7 when entering the PIN code, and we only used each digit once. What is the probability that someone will guess our PIN code on the first try?

Correct answer:

p =  0.01 %

Step-by-step explanation:

n1=5 4 3 2=120 n2=10 10 10 10=10000  p=100 n21=100 100001=10000100 1=10000100=1001%=0.01%

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