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a)Un trandafir costa cit 3 narcise.Citi trandafiri costa tot atit cit 6,9,30 narcise?


b)Cite narcise costa tot atit cit 6,9,30 trandafiri?


Răspuns :

a.1tranfafit=3narcise;
⇒6narcise=2trandafiri;
⇒9narcise=3narcise;
⇒30narcise=10trandafiri;
b. 6trandafiri=18narcise;
⇒9trandafiri⇒27narcise;
⇒30trandafiri⇒90narcise;