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3 banane si 5 mineole cantaresc impreuna 810 grame. Cat cantareste fiecare, daca o banana si o mineola cantaresc impreuna 220 grame?

Răspuns :

Daca 1 banana si 1 mineola cantaresc 220 de g,atunci 3 banane si 3 mineole cantaresc 660 de grame
deci am aflat cat cantaresc 3 banane si 3 mineole,acum mai avem de aflat cat cantaresc cele 2 mineole ramase,pai e usor scadem din810 pe 660
810g-660g=150g
deci 2 mineole cantaresc 150 de g,acum aflat cat cantareste 1 mineola

150g÷2=75g(1 mineola)
acum aflam cat cantareste 1 banana
75g×5=375g
810g=375g=435g
435g÷3=145 g(1 banana)