The speed of car a is 20 km / h faster than that of car B, and the two cars meet half an hour later What's the speed of the two cars?

The speed of car a is 20 km / h faster than that of car B, and the two cars meet half an hour later What's the speed of the two cars?

If the speed of vehicle B is XKM / h, the speed of vehicle a is (5x + 20) km / h
(x+5x+20)*(1/2)=298
x=96
5x+20=500(km/h)
That is, the speed of car a is 500 km / h, and that of car B is 96 km / h

A. B is 1080km apart. The speed ratio of the two cars is 7:5. Car a is 20km faster than car B. how many hours later do they meet?

Let the speed of two cars be 7K and 5K respectively
So: 7k-5k = 20
k=10
Car a = 7 * 10 = 70
Car B = 5 * 10 = 50
1080 / (70 + 50) = 9 hours

The electric locomotive and the maglev train start from 1192 km apart and travel in opposite directions at the same time. The speed of the maglev train is 20 km / h faster than 5 times that of the electric locomotive. Two hours later, the two cars meet. What are the speeds of the electric locomotive and the maglev train?

Suppose the speed of the electric locomotive is x km / h, (1 minute), then the speed of the maglev train is (5x + 20) km / h. according to the title and the equations, we get that 2x + 2 (5x + 20) = 1192, (3 minutes) 2x + 10x + 40 = 1192, 12x = 1152, ｜ x = 96, (4 minutes) ｜ 5x + 20 = 5 × 96 + 20 = 500

One morning, car a and car B started from place a and went in the same direction one after another. The speed was 60 kilometers per hour. The distance between car a and place a was four times that of car B. at 8:28,
Three times as much as car B. when did car a start?

It starts at 7:43. Half an hour later, it's 8:13. At this time, car a is 120 km away from a and car B is 30 km away from A. after another 15 minutes, that's 8:28. At this time, car a is 135 km away from a and car B is 45 km away from a
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