What is the minimum number of different colours required to paint the given figure such that no two adjacent regions have the same colour? (SOF IMO 2016)

What is the minimum number of different colours r

1.	What is the minimum number of different colours required to paint the given figure such that no two adjacent regions have the same colour? (SOF IMO 2016)
A.	3
B.	4
C.	5
D.	6
Answer» B. 4

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What is the minimum number of different colours required to paint the given figure such that no two adjacent regions have the same colour? (SOF IMO 2016)

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