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Seems busted now - clicking the "I think I know" button does nothing. I thought the answer was:

Let the first number be x. If x is 0, then the second number is 1. Otherwise, the second number is two times the absolute value of x. The third number is 2 times the value of the second number.

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The answer they were looking for was: Let the numbers be x, y, and z; x < y < z must be true.

Their hypothesis was that most people would guess as you did (they mentioned 78% of people did so).

I had to turn off µBlock to make it work.

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