Tuesday, 11 October 2011

Puzzle-2 (CSAT-2011)

Consider the figure given below and answer the question that follows:

What is the minimum number of colours required to paint the figure given
above such that no two adjacent regions have the same colour?
(a) 2        (b) 3           (c) 4            (d) 5
Solution follows here:


As shown in the figure, only 3 colours are                   sufficient.
Answer option (b)

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