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Two trains that are 600 km apart are heading towards each other at 50 km/h and 100 km/h. How many hours will it be before they meet?



Two trains that are 280 km apart are heading towards each other at 60 km/h and 80 km/h. How many hours will it be before they meet?



Two trains that are 1440 km apart are heading towards each other at 100 km/h and 80 km/h. How many hours will it be before they meet?



Two trains that are 300 km apart are heading towards each other at 60 km/h and 90 km/h. How many hours will it be before they meet?



Two trains that are 1140 km apart are heading towards each other at 90 km/h and 100 km/h. How many hours will it be before they meet?

Two trains that are 800 km apart are heading towards each other at 100 km/h and 100 km/h. How many hours will it be before they meet?



Two trains that are 1330 km apart are heading towards each other at 90 km/h and 100 km/h. How many hours will it be before they meet?



560 km 떨어진 양쪽 두 도시에서 각각 두대의 기차가 서로를 향해 60 km/h 와 80 km/h의 속도로 달려 오고있다. 두대의 기차가 서로 만나는데 몇시간이 걸리는가?



Two trains that are 950 km apart are heading towards each other at 90 km/h and 100 km/h. How many hours will it be before they meet?



Two trains that are 480 km apart are heading towards each other at 90 km/h and 70 km/h. How many hours will it be before they meet?

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