Did you solve it? Are you in the smartest 1 per cent (of 13-year-olds)?
by Alex Bellos from Science | The Guardian on (#4HBYG)
The solutions to today's problems
Earlier today I set you the following puzzles:
1. In this word-sum, each letter stands for one of the digits 0-9, and stands for the same digit each time it appears. Different letters stand for different digits. No number starts with 0.
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