1.

A man walks at a speed of 3 km/hr and runs at a speed of 7 km/hr. How much time will the man require to cover a distance of 10 1/2 km, if he completes half of the distance, i.e., (5 1/4) km on foot an

Answer»

None of these



Required TIME = (5 1/4)/3 + (5 1/4)/7 = 2 1/2 HOURS.



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