A car covers 30 km in 3 hr 35 min . Find the speed of the car
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In the first case,
time= 30min=30/60hrs=1/2hr.
Speed=60km/hr.
Therefore, distance=speed×time=60×1/2=30km.
In the second case,
distance is same=30km.
Time= 20 minutes=20/60hr=1/3hr.
Now,speed=distance/time=30/(1/3)=30×3=90km/hr.
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