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Erase the right 90 (Posted on 2016-01-28) Difficulty: 3 of 5
101 distinct real numbers are written in any order

Prove that it is possible to erase 90 of them leaving a sequence of 11 numbers that are in either a strictly increasing or strictly decreasing order.

No Solution Yet Submitted by Ady TZIDON    
Rating: 4.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: Sequence?Charlie2016-01-29 11:33:30
SolutionI got itbroll2016-01-29 08:55:48
Some Thoughtsre: proof on the internet (spoiler)broll2016-01-29 07:37:57
Some ThoughtsSequence?Jer2016-01-29 07:26:40
Solutionproof on the internet (spoiler)Charlie2016-01-28 15:16:54
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