Thanks for the question! So the set up for this question should look like this:
P Y _ P Y _ _ _ _
Now remember that we need to have R’s next to the PYs.
P Y R P Y R _ _ _
This question is asking us something that could be true. Can G be on the 8th bead? Well, if G is on the 8th bead, then O can’t be on the 8th bead. And O can’t be on the 7th bead because it can’t be next to R.
This is where making sure you understand what the last rule is saying is important. ANY 8 consecutive beads have to have one of each color. That means in this question, beads 1-8 have to have one of each color, and beads 2-9 have to have one of each color. But if we put G in 8, we can’t put O anywhere in the first 8. And that violates the last rule. So we can’t end with “GGO” because we need “O” to show up in the first 8 somewhere.
Hope this helps! Feel free to ask any other questions that you might have.
fallonleMarch 16, 2021
Which video covers deductions and inferences?
fallonleMarch 17, 2021
which lesson/video cover deductions and inference?
BennyB33April 12, 2022
Tricky. Didn't think that the 8 beads NEED to be all colors I thought as long as 9 beads were all different. Thanks Shunhe!!
