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Mathematics, 22.02.2021 20:20 Yoma321

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La muzeu sunt oferte de DVD-uri pentru copii: experimente si texte stiintifice. Un pachet format
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din 4 DVD-uri cu experimente si 5 DVD-uri cu texte stiintifice costs 187 lei, iar unul format din
4 DVD-uri cu experimente si 7 DVD-uri cu texte stiintifice costă 217 lei.
Cât costă un DVD din fiecare fel?​

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