A starts from a place at 7 am at a speed of 10 km per hour and b starts from same place 9 am at a speed of 15 km per hour when b will meet a
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after 63km they will meet
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A train travelling 25 km an hour leaves Delhi at 9 a.m. and another train travelling 35 km an hour starts at 2 p.m. in the same direction. How many km from Delhi will they be together?
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