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Verified answer
Jawabukurn aula = 20 m x 12 m
ukuran keramik = 40 cm x 40 cm
Banyak keramik = 20 m x12 m/ (40 cm x 40 cm
n = 2000 x 1200 / ( 40 x 40)
n = 50 x 30
n = 1.500 buah