Question #4075

The 8th bead could be Green

Started by dallman0303 · started 2015-10-23 16:27 · last activity 2023-03-20 16:15 · 5 replies

Understand the explanation but it could still be true that 7,8,9 were G,G,O and therefore B would also be correct. There are no rules that would prevent this instance so it could be true. Please explain.

Replies

  1. Naz · 2015-10-27 01:05

    Don't forget rule # 4. Because we have P in 1 and 4 and Y in 2 and 5, we must have R in 3 and 6 to fulfill rule #1. So that means we must have one G and one O in 7 and 8 to fulfill rule #4. Since rule # 3 tell us that R and O cannot be next to one another, O must be in 8 and that forces G to be in 7 (again because of rule #4). Then other than R, anything can be in 9 (R cannot be because of rule #3). Thus, we cannot have the 8th bead be G. It MUST BE O. If you re-watch the video for the question explanation, this is pointed out. Hope that helps! Please let us know if you have any other questions.

  2. dallman0303 · 2015-10-27 20:31

    Completely understand rule #4 and that anything could be in 9. Why can't O be in 9 and 7/8 be G? R and O are still separated and all colors are represented.

  3. AndrewArabie · 2022-09-13 22:27

    This is my problem with the question as well. "O" could be in 9, it doesn't have to be green. Am I missing something?

  4. AndrewArabie · 2023-03-20 16:13

    I just want to reiterate this question. I don't see anything wrong with B. PYRPYRGGO seems like perfectly plausible scenario to me and doesn't violate any rules

  5. AndrewArabie · 2023-03-20 16:15

    Oh wait never mind. G&O beads have to be represented within the first 8. I interpreted this rule just to mean whenever there are 8 or more beads all must be represented

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