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Bound the product (Posted on 2015-02-13) Difficulty: 2 of 5
pr=(1/2)*(3/4)*(5/6)... *(99/100)

Without explicit computation prove that
pr is less than 1/10, but more than 1/15.

No Solution Yet Submitted by Ady TZIDON    
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re(2): Possible solution. Correction and second part. Comment 4 of 4 |
(In reply to re: Possible solution. Correction and second part. by Jer)

Actually I was still drafting and the second part is now done, though I agree your method is neater!
  Posted by broll on 2015-02-13 13:01:11

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