100% - (keju+susu+coklat+abon) = 100% - 85% = 15%
Roti sosis= 15% x 200 = 30 buah roti sosis yang terjual (pilihan D)
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100% - (keju+susu+coklat+abon) = 100% - 85% = 15%
Roti sosis= 15% x 200 = 30 buah roti sosis yang terjual (pilihan D)