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Q: A runner travels 3 kilometers in 30 minutes. What is the speed of the runner?

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The runner's speed is 3 kilometers per 30 minutes. In somewhat more familiar units, it's also 6 km per hour.

66⅔ meters per minute.

90 kilometres per hour.

The bike's speed would be 42.3 kilometers per hour.

73.85 kilometers per hour.

It's speed - which is 90 Km/h

No. Light travels at about 300,000 kilometers per second.

36 minutes. But, no bird on earth can fly at 500 km per hour.

The speed is the distance traveled divided by the time it takes to travel that distance. In this case we with divide 8 kilometers by 10 minutes to get 0.8 km/minute. One hour is sixty minutes, so this works out to 48 km/hour.

Hint: 10000 meters = 10 km, 30 minutes = ½ hour... 10,000 meters in 30 minutes = 10 kilometers per 0.5 hour = 20 kilometers per hour

speed of light

Not quite. A distance is not a speed. A speed is the distance light travels, divided by the time. Thus, the speed of light is about 300,000 kilometers per second, or 18 million kilometers per minute.

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