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It is known that car a travels 12 kilometers more per hour than car B. five hours later, car a travels 75% of the whole journey The distance between B and ab is several thousand meters. Answer before 8 o'clock
5 hours Jiaduo 12 × 5 = 60 km
So a is 10 + 60 km above the midpoint
So the distance between them is 70 (75% - 1 / 2) = 280 km
After six hours, car a runs 70% of the whole journey, and car B exceeds the key point by 19 kilometers. It is known that car a is better than car B
How many kilometers is the distance between a and B cities?
Car a runs more than car B in six hours
2.5 × 6 = 15 (km)
If vehicle B exceeds the midpoint by 19 km, vehicle a exceeds the midpoint
19 + 15 = 34 (km)
A. B the distance between the two cities
34 (70% - 50%) = 170 (km)
After 6 hours, car a runs 70% of the whole journey, and car B runs 19 kilometers above the midpoint. It's known that car a is in the middle of the journey
It's 2.5 kilometers more than car B per hour. How many kilometers are there between a and B?
In 6 hours, a walked 6 * 2.5 kilometers more than B
B is 19 km above the midpoint, so a is 19 + 15 = 34 km, which is equivalent to 70% - 50% = 20% of the total distance
So AB = 34 / 0.2 = 170 km
Two cars a and B leave from a and B at the same time. They meet 2.8 hours later. When they meet, car a runs for 30 minutes and car B runs for several hours
Two cars a and B leave from a and B at the same time. They meet 2.8 hours later. When they meet, car a runs 30% of the whole journey, and car B takes several hours to complete the whole journey
What's the meaning of 30% of the total length of a car line? There is no unit, not a score,
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