Задачи от смеси и сплави Lesson

7 Slides • 1 Question

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Multiple Choice

Колко литра вода трябва да се прибавят към 5 литра 30%-ен разтвор на спирт, за да се получи 20%-ен разтвор?

1

2,5 L

2

3,5 L

3

2 L

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