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Question :
The total number of possible congurations using beads of only two colours is:
Started 2 weeks ago by Shashank in
Answer : 2
Explanatory Answer
Rules:
• Adjacent beads of different colours
• At least one green bead between any 2 blue beads
• At least one green & at least one blue bead between any 2 red beads
It is clear that using Red would require the other 2 colours too. Hence, combinations of Red +
Blue and Red + Green are not possible.
Using Blue + Green combination:
2 arrangements are possible
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