Remember that there are TWO prizes to aim for.
The Question
You have nine cards numbered from 1 to 9. You shuffle them and place them face down on the table. You then pick each card randomly and lay them out in order. Find the probability that the resulting 9-digit number is divisible by 99.
Express this probability as m/n, where m and n are relatively prime. What is the sum (m + n)?
The Prizes
To qualify you must upvote this post and write the answer in a comment.
To win First Prize you must include the answer and a valid method.
The First Prize will be 40% of the earnings generated by this post, paid in SBD.
The Second Prize will be 10% of the earnings generated by this post, awarded to any other correct answer in the comments section, chosen at random and paid in SBD.
Also remember that your upvote generates curation rewards for you and that 25% of all earnings are given to upvoters.
Prizes will be awarded after the 7 days have expired. Winners will be announced in the comments below after the draw.
The Prizes will increase with more participation and as the earnings increase.
The main thing is to enjoy the challenge and maybe learn something new.
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