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The distance between the two places is 96 kilometers. A and B run from the two places at the same time and meet each other in 45 hours?
96 △ 45-54, = 120-54, = 66 km; a: car B travels 66 km per hour
The two cars are 540 kilometers apart. They are facing each other at the same time. The speed of car a is 80% of that of car B. when the two cars meet three hours later, the speed of car a is () hours
540 △ 3 = 180 (km / h)
180÷(1+80%)×80%
=180÷1.8×0.8
=80 (km / h)
A: the speed of car a is 80 km / h
You can ask me if you don't understand my answer!
The speed ratio of a and B is 10:9. The two cars meet at a distance of 3km from the midpoint of the two cities. How many kilometers is the distance between a and B?
When the two cars meet at a distance of 3km from the midpoint of the two cities, it means that car a has passed the midpoint of 3km, while car B still has 3km to go, so the distance difference between car a and car B is 3 * 2 = 6km, 6 △ 10-9 * (10 + 9) = 114km
A: A and B are 114 kilometers apart
The speed of car a is 80% of that of car B. the two cars meet at a distance of 20 kilometers from the midpoint. How many kilometers is the distance between the two places?
The distance of vehicle B when meeting: 20 × 2 △ 1-80% = 40 × 5 = 200 km
Distance between the two places: 200 × (1 + 80%) = 200 × 1.8 = 360 km
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