- #1
Ian Rumsey
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The numbers 1, 2, 3, 4, 5, 6, 7, 8, 9. are placed in a bag and then individually removed, in no particular order, and placed in line to form a nine digit number.
What is the probability that this random nine digit number is divisible by 9.
What is the probability that this random nine digit number is divisible by 9.