February 2019 2 33 Report
Berat rata-rata 15 siswa adalah 58kg. jika digabung dengan 10 siswa lagi beratnya
Menjadi 56 kg.Berat rata-rata ke 10 siswa tersebut adalah…..kg
(A). 52,5 (D). 54,0
(B). 53,0 (E). 54,5
(C). 53,5
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