Wesley has a grid of six cells. He wants to colour two of the cells black so that the two black cells share a vertex but not a side. In how many ways can he achieve this?
Answers
Answer:
in 5 ways
Step-by-step explanation:
hope it helps
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Given : Wesley has a grid of six cells. He wants to colour two of the cells black so that the two black cells share a vertex but not a side
To find : how many ways can he achieve this
Step-by-step explanation:
Let say Label it
1 2
3 4 5
6
Color Black 1 & 4
Color Black 2 & 3 , 2 & 5
Color Black 3 & 6 ( 3 & 1 - already Considered )
Color Black ( 4 &1 already Considered )
Color Black 5 & 6 ( 5 & 2 already Considered )
Color Black (6 & 3, , 6 & 5 already Considered)
Hence Total = 5 Ways
1 & 4 , 2 & 3 , 2 & 5 , 3 & 6 , 5 & 6
See attached figure
Learn more:
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