yg no 18 tolong di jawab

45 km /jam + 35 km/jam = 80 km/jam
waktu = jarak / kecepatan = 60/80 : 10 = 6/8 : 2 = 3/4 × 60 menit = 180 / 4 = 45 menit = 00.45
jadi 13.20 + 00.45 = 14.05
jawabanya b. 14.05
semoga benar