Rolanddano421viz Rolanddano421viz Math Answered 1. 2 hours at 30 km/h =2. 7 hours at 65 km/h =3. 45 minutes at 80 km/h =For numbers 4-5, how long does it take to travel:4. 180 kilometers at 20 km/h? =5. 250 kilometers at 60 km/h? =