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Story summary
- Ade sees Binky has 3 and Carl has 1, under the rule that the sum of two numbers equals the third.
- Ade states he does not know his own number.
- Binky then says he also does not know his number.
- After these statements, Ade deduces his number is 4 and announces it.
- The deduction hinges on Ade's number not allowing Binky to deduce his own.
