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kecepatan = 70 km/jam
waktu 09.30 - 12.00 = 3,5 jam
jarak = kecepatan × waktu
= 70 × 3,5
=245 km
2. diket :
waktu = 12.30 - 13.00 = 0,5 jam
jarak = 120 km
kecepatan = jarak / waktu
=120 / 0,5
= 240 km/jam