December 2018 1 48 Report
Jika emas 18 karat mengandung 18/24 emas murni Dan 6/24 campuran logam lain, Maka tentukan banyak emas murni dalam kadar berikut Ini
a. 48 gram emas 18 karat
b. 120 gram emas 22 karat
c. 180 gram emas 23 karat

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