The speed of a car is 90 kmph. The distance covered by the car in 7 seconds will be:
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The total journey is of 800 km. A car travels the first 320 km of the journey at the speed of 64 km/hr. What should be the speed of the next 480 km so that the average speed will become 80 km/hr?
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An athlete crosses a 3000 m distance in 10 minutes. What is his speed (in km/h)?
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A train covers a certain distance with a speed of 72 km/h in the first two hours of its journey and 120 km in the next 1.5 hours. What is its average speed (in km/h, rounded off to the nearest integer) for the entire journey?
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