1公里用时24秒。时速多少公里每小时

To find the speed in kilometers per hour, we need to convert the time from seconds to hours.

1 kilometer = 1000 meters 1 hour = 3600 seconds

Therefore, the speed in kilometers per hour is:

(1 kilometer / 24 seconds) * (3600 seconds / 1 hour) = (1000 / 24) * 3600

Calculating this gives us:

1000 / 24 = 41.67 41.67 * 3600 = 150,012

Therefore, the speed is approximately 150,012 kilometers per hour.