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It takes 6 hours for the express train to go from place a to place B, and 8 hours for the local train. The two trains leave from both places at the same time. When they meet, the express train travels 60 kilometers more than the local train. How many kilometers is the distance between the two places?
8: A: the distance between a and B is 420 km
It takes 8 hours for an express train to go from place a to place B, and 12 hours for a local train to go from place B to place A. when it meets, the express train travels 48 kilometers more than the local train
It takes 8 hours for an express train to go from place a to place B, and 12 hours for a local train to go from place B to place A. when the express train meets the local train, it takes 48 kilometers more than the local train. How many kilometers are there between the two stations?
Find the speed ratio first, according to the speed ratio is the inverse ratio of time, 8:12 inverse ratio, 12:8 simplify 3:2
We can find out the fraction of the whole journey when the fast train and the slow train meet. The fast train: 3 △ 3 + 2 = 3 / 5, the slow train: 2 △ 3 + 2 = 2 / 5. Because "the fast train travels 48 kilometers more than the slow train when they meet", we use 48 △ 3-3 / 2 = 48 △ 1 / 5 = 240 (km)
I think I did something wrong
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