Explanation:

distance = speed x time

where distance is measured in kilometers, speed is measured in kilometers per hour, and time is measured in hours.

Plugging in the given values, we get:

distance = 105 km/hour x 25 hours

distance = 2625 kilometers

Therefore, the tricycle covers a distance of 2,625 kilometers in 25 hours at an average speed of 105 km per hour.