October 2018 2 41 Report
Nilai rata" ulangan dr suatu kls adlh 69 .Jika ditambahkan 2 org anak yg memiliki rata" 89 ,maka nilai rata" mnjd 70 .Banyak siswa pada kls semula adalah
A. 38
B. 39
C. 40
D. 42

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