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Noua crini costa cat 33de gladiole. Stiind ca 15 crini costa 165 de lei afla cat costa 25 de gladiole.

Răspuns :

Cat costa un crin? 165:15=11 lei
Cat costa 33 de gladiole? 11*9=99 lei
Cat costa o gladiola? 99:33=3lei
Cat costa 25 de gladiole? 3*25=75 lei