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Verified answer
Pakai perbandinganberas = 720: 300 = x : 25
beras = 720 × 25 : 300 = 60kg
gula = 720 : 300 = y : 15
gula = 720 × 15 ÷ 300 = 36kg
300 ÷ 15 = 20(gula)
beras = 720 ÷ 12 = 60
gula= 720 ÷ 20 = 36
jadi beras dan gula yang di butuhkan untuk 720 undangan adalah 60kg dan 36kg.