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Kec. mobil = 120 ÷ 2 = 60
Kec. jalan kaki = 1/10 ÷ 1/30 = 1/10 × 30 = 3
Masukkan ke perbandingan
60 : 3 = 20 : 1
ini dia jawabannya...
semoga membantu yah...