The speed of the car on the highway is 80 km / h, which is 40/3 of its speed off-road.
| January 14, 2021 | education
The speed of the car on the highway is 80 km / h, which is 40/3 of its speed off-road. How many hours faster will the car travel 300 km on the highway than 30 km off-road?
1) Find the speed of the car off-road:
80: 40 * 3 = 6 (km / h)
2) Let’s find in how many hours the car will travel 300 km on the highway:
300: 80 = 3.75 (h)
3) Let’s find in how many hours the car will travel 30 km off-road:
30: 6 = 5 (km)
4) Let’s determine how many hours faster the car will travel 300 km on the highway than 30 km off-road:
5 – 3.75 = 1.25 (h)
Answer: 1.25 hours faster
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