Answer: 120 minutes, 105 km, proportional
Explanation:
90 km/hr
180 km * 1 hr/90 km=
180 km/90 km * 1 hr=
2 hours=120 minutes
1 hour=60 minutes
70/60=x/90
7/6=x/90
7*90/6=x
x=7*15
x=105 km
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