Talk:Puzzles/Logic puzzles/10 Hats/Solution

The first "solution" violates the intent, which is that each person only passes along one bit of information (if you are going to allow the possibility of a delayed answer, what next? calling out the colour in a choice of languages? in an angry/mellow/falsetto voice...

The second solution works nicely though.

This problem is severly flawed. It assumes that the teacher will put one colour had randomly, then one of the other colour, and alternate between colours, but it doesn't expliciatly say this. There is nothing preventing there from being 8 red and 2 white?

The puzzle doesn't state anywhere that the 10th person answers first. And isn't this sort of test only encouraging cheating behaviour? :D