The odometer of a car reads 57,321.0 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 57,336.0 km? Calculate the speed of the car in km/min during this time. Express the speed in km/h also.


when time is 08:30 a.m.: the distance read by Odometer = 5,7321.0 km


When time is 08:50 a.m.: The distance read by Odometer = 57,336.0 km


Distance travelled by car = distance read by odometer at 08:50 am – distance read by Odometer at 08:30 am


= 57,336.0 km- 5,7321.0 km


Distance travelled= 15 km


Time taken = Final time – initial time = 8:50 am – 8:30 am


Time taken t = 20 minutes


Speed of the car= distance/ time taken


= 15km/20 minutes


Converting minutes into hours, divide by 60 as 1 hour = 60 minutes


So, 1 minutes= h


So, speed = 15 x


Speed = 45 km/h.


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