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Play until you win (Posted on 2018-06-15) Difficulty: 4 of 5
Consider this game:

You have a 1% chance of winning on the first try. If you win, great!

If you don't, win on the first try, you have a 2% chance of winning on the second try.

If needed you have a 3% chance on the third try and so on until you eventually win.

What is the expected number of tries to win this game?

  Submitted by Jer    
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Solution: (Hide)
The numerator is the 100th term of https://oeis.org/A001865

The denominator is 100^99

Quotient is about 12.21

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Puzzle AnswerK Sengupta2024-02-26 19:15:46
SolutionUnsatisfying computer solution (spoiler)Charlie2018-06-15 12:08:54
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