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Ana si Bogdan au impreuna 7 mere , iar Ana si Calin au impreuna 8 mere . Determinati cate mere are Ana , stiind ca , imreuma , cei trei copii au 12 mere

Răspuns :

Calin are 12-7=5 mere Bogdan are 12-8=4mere Ana are7-4=3 mere
12-7=5 mere are calin
8-5=3 mere are ana
7-3=4 mere are bogdan
verificare:
5+3+4=12 mere
RASPUNS:Ana are 3 mere