tolong di jawab pakai cara no 54

budaya 1/4 lingkaran

persentase = 1/4 × 100%
persentase buku budaya = 25%

ensiklopedia dan fiksi
100% - ( 10% + 25% )
100% - 35%
65%

banyak buku
65% / 25% - 10% × 75
65% / 15% × 75
65 × 5
325 buah