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# The odometer of a car reads $$57321.0$$km when the clock shows the time $$08:30$$AM. What is the distance moved by the car, if at $$08:50$$ AM, the odometer reading has changed to $$57336.0$$km $$?$$ Calculate the speed of the car in km$$/$$min during this time. Express the speed in km$$/$$h also.

Solution
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#### Distance $$= 57336.0km - 57321km = 15km$$Speed in km$$/$$min $$=15km/20min = \dfrac{3}{4} km/min$$Speed in $$km/hr= \dfrac{3}{4} \times \dfrac{km}{min} \times \dfrac{60 min }{hr} =(15\times 3)km/hr =45km/hr$$.

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