if the speed of a car is increased by 10 kilometre per hour it takes 18 minutes less to cover a distance of 36 kilometre find speed of the car
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if the speed of the car is increased by 10 km/hr and it takes 18 min to cover a distance of 36 km
therefore : speed =distance/time
therefore : speed = 36/18
therefore : speed = 2
therefore the speed of the car was 2 km/hr
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