To calculate the speed of the scooterist, we need to use the formula:

Speed = Distance / Time

Given, distance covered by the scooterist = 3 km, and time taken = 5 minutes.



1 km = 1000 m

Therefore, distance covered by the scooterist in metres = 3 km × 1000 m/km = 3000 m

Time taken by the scooterist = 5 minutes = 5 × 60 seconds = 300 seconds

Now, using the speed formula, we get:

Speed = Distance / Time = 3000 m / 300 s = 10 m/s

Therefore, the speed of the scooterist in metres per second is 10 m/s.



1 m = 100 cm

Therefore, speed in cm/s = 10 m/s × 100 cm/m = 1000 cm/s

Therefore, the speed of the scooterist in centimetres per second is 1000 cm/s.



To convert m/s to km/h, we multiply the speed in m/s by 3.6.

Therefore, speed in km/h = 10 m/s × 3.6 = 36 km/h

Therefore, the speed of the scooterist in kilometres per hour is 36 km/h.



In conclusion, the speed of the scooterist can be calculated using the formula Speed = Distance / Time. The distance covered by the scooterist was 3 km, and the time taken was 5 minutes. Using this information, we calculated the speed in three different units: metres per second, centimetres per second, and kilometres per hour. The speed was found to be 10 m/s, 1000 cm/s, and 36 km/h, respectively.