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RE: QUIZ Test #11 - can you solve this? difficulty level: medium
Yes, they will be free for sure!
If number 1 see that 2 and 3's hat is of the same color, number 1 will guess his hat right.
If number 1 cannot make a guess, number 2 should know that his hat is different from number 3's. Hence number 2 would give the correct guess.