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Two towns A and B are 170 km apart, a train starts at 9 a.m. from A towards B at a speed of 40

Two towns A and B are 170 km apart, a train starts at 9 a.m. from A towards B at a speed of 40 km/hr, at 11 a.m. another train starts from B towards A at a speed of 50 km/hr. When will the two trains meet? 1. 1 PM 12 Noon 3. 12.30 PM 4. 1.30 PM 5. None of these 2.

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