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A person covers 40% of the distance from A to B at 10 km/hr, 40% of the remaining distance at 9 km/hr. and the rest at 12 km/h
March 30, 2024
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A person covers 40% of the distance from A to B at 10 km/hr, 40% of the remaining distance at 9 km/hr. and the rest at 12 km/h. His average speed (in km/hr) for the journey is?
