December 2018 1 21 Report
1) dalam suatu kelas berat badan rata" seluruh siswa=49,5 kg. Berat badan rata" 15 siswa laki": 52 kg. jk jmlh siswa perempuan 25 org, maka berat badan rata" siswa perempuan.... A. 48kg b. 46kg c. 44kg d.42 kg 2)perbandingan umur firda dan asti 3:5. jk umur asti 20 th lbh tua dr umur firda, maka jmlh umur mrk.... a. 32 th b. 50th c. 74th d.80th # tolong jwb y, dgn caranya
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