a train travells 40km at a uniform speed of 30 km/h. it average speed after traveling 40 km/h for the whole journey. What will be spedd in the second half of the journey.
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I think ur questionis not right..
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wait bhai ji
train travels 40 km at a uniform speed of 30 km/h. It average speed after travelling 40 km is 45 km per hour for the whole journey. what will be speed in the second half of the journey.
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