February 2019 2 81 Report
Nilai rata-rata ulangan mateatika kelompok siswa putri 88, sedangkan rata-rata kelompok putra 80. nilai rata-rata keseluruhan 85. jumlah siswa seluruhnya 32 orang. banyak siswa putri adalah?
a. 8
b. 12
c.20
d.24

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