Question

Walking at the rate of 2km/hr a man cover certain distance in 2hr 45 min running at a speed of 16.5 km/hr the man will cover the same distance in

Answer 1

Time taken is 2hr 45 min=2 45/60 hr =2 3/4hr=11/4 hr . Speed =2km/hr .So Distance covered=(speed)(time taken) =2(11/4) =11/2 km=5.5km. If 5.5 km is covered at 16.5km/hr ,time taken =distance covered/speed=5.5/16.5 =1/3hr=1/3(60) min=20min=
1200 seconds .