If you thought theSingaporean logic puzzle was tough , brace yourself for this math trouble that was originally set for eight - year - old students in the Vietnamese Ithiel Town of Bao Loc . It ’s apparently even stumped someone with a doctorate in economics with mathematics .
AsAlex Bellospoints out onThe Guardian , it ’s not a theoretically difficult problem . You just need to add in each of the digit from 1 to 9 so that the storage-battery grid reach gumption . ( Update : those who are asking , the ‘ : ’ symbols signify division . ) But in practice it call on out to be prrrrrretty tough . Good luck — and how about post your solutions below ? [ VN ExpressviaGuardian ]
Image from VN Express
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