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If two of them wear the same colour, then how many of the following must be false?
I. Amar wears blue and Akbar does not wear green
II. Amar does not wear blue and Akbar wears blue
III. Amar does not wear blue and Akbar does not wear blue
IV. Amar wears green, Akbar does not wear red, Anthony does not wear green
The different possible cases are:
From the table we can see among all of the statements, only fourth statement is false, as if amar wears green, anthony has to wear green.
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