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Topic: Lines (Read 679 times) |
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alien2
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(You are given an A4 paper with the following riddle.)
All you're allowed to do is to draw maximum two straight lines. By using a pencil and a ruler, your task is to run a line through all the numbers.
2 9 7 3 6 9 5
7 2 4 8 4 5 9
4 7 3 9 8 3 1
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| « Last Edit: May 4th, 2015, 3:35pm by alien2 » |
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SMQ
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Re: Lines
« Reply #1 on: May 4th, 2015, 9:31am » |
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Is the "draw" vs "run" wording significant? I.e. can I fold the paper in half and crease it to "run" a third line?
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towr
wu::riddles Moderator
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Some people are average, some are just mean.
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Re: Lines
« Reply #2 on: May 4th, 2015, 12:16pm » |
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Can I draw a line that's not straight?
Can I curve space? Or y'know, just bend the paper into a cylinder.
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Wikipedia, Google, Mathworld, Integer sequence DB
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alien2
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Re: Lines
« Reply #3 on: May 4th, 2015, 3:09pm » |
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Not allowed. I've modified the riddle in order to exclude all of the ideas above.
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pex
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Re: Lines
« Reply #4 on: May 4th, 2015, 3:43pm » |
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Every instance of every number, or just all the different numbers? In the latter case, we don't need the middle row.
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alien2
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Re: Lines
« Reply #5 on: May 5th, 2015, 9:11am » |
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on May 4th, 2015, 3:43pm, pex wrote:| Every instance of every number, or just all the different numbers? In the latter case, we don't need the middle row. |
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This is the intended answer.
I think that it is enough to draw one line for an alternative answer.
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pex
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Re: Lines
« Reply #6 on: May 5th, 2015, 5:59pm » |
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on May 5th, 2015, 9:11am, alien2 wrote:| I think that it is enough to draw one line for an alternative answer. |
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I hope that would not involve drawing a line through the words "all the numbers"...?
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alien2
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Re: Lines
« Reply #7 on: May 6th, 2015, 3:17am » |
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Err... it does. Just disregard this silly answer.
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