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The odometer of a car reads 21326.0 km when the clock shows the time 08:10 AM. What is the distance moved by the car, if at 08:50 AM, the odometer reading has changed to 21386.0 km? Calculate the speed of the car in km/min during this time. Express the speed in km/h also.

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1.5 km/min, 90 km/hr

1 km/min, 60 km/hr

1.5 km/min, 60 km/hr

2 km/min, 90 km/hr

answer is A.

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Detailed Solution

"The total distance covered is 60 kms in 40 mins. Hence the speed is 60/40 km/min.
Also to convert min into hr, we need to divide it by 60. Hence 60 x 60/40 = 90 km/hr"

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