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Two cars leave from a and B at the same time, car a travels 50 kilometers per hour, car B travels 60 kilometers per hour. After 4 o'clock, the distance between the two cars is 20% of the whole journey How many kilometers are there between a and B? What's the formula
5500km
The two cars run from a and B at the same time. Car a runs 55 kilometers per hour, and after 4 o'clock, it has passed the terminal 20 kilometers. At this time, the distance between car a and car B is 8 kilometers
The two cars run from both sides at the same time. Car a travels 55 kilometers per hour and has passed the midpoint of 20 kilometers after 4 o'clock. At this time, car a and car a are 8 kilometers apart. How many kilometers per hour does bus B travel?
Middle point? End point?
If it's the end, it's dizzy
If it is the middle point, the distance is 55 * 4-20 = 200km
B car is 200-20-8 = 172 km, speed is 172 / 4 = 43 km / h
(it is also possible that if the two vehicles have met, it will be (200-20 + 8) / 4 = 47km / h)
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