5 liter larutan garam berkadar 20% dicampur dengan 3 liter larutan garam berkadar 60%. Berapa kadar garam campuran?

Answer and explanation

Correct answer: A. 35%

Garam total = (5 x 20 + 3 x 60) per 100 liter-persen = 280; volume total 8 liter, sehingga kadar = 35%.

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