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waktu = 13.45 - 10.30
= 3.15 atau 3 1/4 jam atau 13/4 jam
kecepatan = jarak/waktu
= 220 km/ 13/4 jam
= 67,6 km/jam
13:45-10:30=3:15 terus 220:1/4=220❌4/1=880