A car has to cover 320 km in 5 hours.for the first 3 hour it travels at a speed of 60 km/hr . what should be its speed after that to reach the destination in desired time
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distance covered in 3 hours is 60*3=180km
distance left to cover is 320-180=240
time left is 2 hours
Speed requires to complete the task is distance/time
(240/2)km/h
120km/h Speed requires
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