% matematika = 100 - (30+10+15+25)
% matematika = 100 - 80 = 20 %
20 % = 40 orang
1 % = 40/20 = 2 orang
Seluruh siswa = 100% = 100 x 2 = 200 orang (D)
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% matematika = 100 - (30+10+15+25)
% matematika = 100 - 80 = 20 %
20 % = 40 orang
1 % = 40/20 = 2 orang
Seluruh siswa = 100% = 100 x 2 = 200 orang (D)