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The speed of a car is 47 times that of a train. Two cars are running from two places at the same time, and they meet at a distance of 15 kilometers from the midpoint. How many kilometers does the train travel?
The distance of the whole journey: 15 △ 74 + 7-12, = 15 △ 322, = 110 (km), the distance of the train: 110 × 711 = 70 (km). A: at this time, the train runs 70 km
The speed ratio of the fast and slow cars is 5:3. The two cars run from two places at the same time, and they meet at 120 km away from the midpoint. How many kilometers does the slow car travel at this time?
The distance of the whole journey: 120 △ 12-35 + 3 = 120 △ 18 = 960 (km) the kilometers of the car: 960 × 35 + 3 = 360 (km) a: at this time, the slow car runs 360 km
The speed of a car is 47 times that of a train. Two cars are running from two places at the same time, and they meet at a distance of 15 kilometers from the midpoint. How many kilometers does the train travel?
The distance of the whole journey: 15 △ 74 + 7-12, = 15 △ 322, = 110 (km), the distance of the train: 110 × 711 = 70 (km). A: at this time, the train runs 70 km
The two trains leave from a and B at the same time. It takes 20 hours for the express train to complete the whole journey and 30 hours for the local train to complete the whole journey. The two trains meet 15 hours after departure. It is known that the express train stops for 4 hours and the local train stops for several hours?
Take the distance between a and B as the whole "1", then the speed of express train is 120, the speed of local train is 130, the distance of a line when meeting: 120 × (15-4) = 1120, the distance of B line when meeting: 1-1120 = 920, the time of B line when meeting: 920 △ 130 = 13.5 (hours), the time of local train stop: 15-13.5 = 1
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