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18.A and B are two station 450 km apart. A train start from station A at 60 km/h towards B at 4 pm and another train start from station B at 3:20 pm towards A at 80 km/h. At what time do they meet ?
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18.A and B are two station 450 km apart. A train start from station A at 60 km/h towards B at 4 pm and another train start from station B at 3:20 pm towards A at 80 km/h. At what time do they meet ?
