1. Walking at the rate of 4 kmph a man covers certain distance in 2 hrs 45 min. Running at a speed of 16.5 kmph the man will cover the same distance in how many minutes ?
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By: anil on 05 May 2019 01.51 am
Distance covered by the man walking at 4 kmph in 2 hrs 45 min = speed * time = 4 * (2 + $$frac{45}{60}$$) = 4 * $$frac{11}{4}$$ = 11 km Now, time required to cover 11 km at 16.5 kmph = $$frac{distance}{speed}$$ = $$frac{11}{16.5}$$ = $$frac{2}{3}$$ hrs = $$frac{2}{3} * 60$$ = 40 minutes
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