PT 20 Section 3 #17 Forum
- Sentry
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- FuManChusco
- Posts: 1217
- Joined: Tue Jan 26, 2010 8:56 pm
Re: PT 20 Section 3 #17
there's a rule stating that for any 8 consecutive beads, there must be one bead of each color. this is a tricky question. by going PYRPYRGGO, there is a string of 8 beads that does not contain the color orange. orange has to be the 8th bead. make sense?