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Building a ruler (Posted on 2008-11-14) Difficulty: 2 of 5
I have an unmarked ruler (AD) of length 6cm. Making two marks in it, one (B) at 1cm from the left end and other (C) at 2cm from the right end, Im able to measure any integer length from 1 to 6 cm:
       A    B             C        D
AB = 1cm / CD = 2cm / BC = 3cm / AC = 4cm / BD = 5cm / AD = 6cm.

If I have an unmarked ruler of length 14cm, what is the minimum number of marks, and where do I have to make them, in order to be able to measure any integer length from 1 to 14cm?

See The Solution Submitted by pcbouhid    
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Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: 16 cmCharlie2008-11-17 13:13:39
re: 16 cm --- thus...pcbouhid2008-11-16 16:48:21
16 cmmonica2008-11-16 14:33:06
Golomb RulersBrian Smith2008-11-16 00:32:35
Some Thoughtsjust 2 remarksAdy TZIDON2008-11-15 11:11:26
re: Catch?Dej Mar2008-11-14 23:48:22
Difficulty / Unique solutionsed bottemiller2008-11-14 19:58:21
re: Catch?Gamer2008-11-14 18:33:08
SolutionsolutionCharlie2008-11-14 18:06:03
Catch?ed bottemiller2008-11-14 17:35:35
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