Distance 164 km the motorcyclist traveled at a speed of 40 km / h. How many hours did the motorcyclist cover this distance?

The rider’s movement is uniform. For every hour of his movement, he overcomes the same distance.
The distance traveled by a motorcycle per hour of movement is called the speed of movement.
The segments of time for which the distance traveled is measured are always whole.
Time can be measured in hours, minutes, seconds.
We write down the formula for determining the speed of uniform movement:
V = S / t;
V is the speed;
S is the distance;
t – travel time.
We derive the time from the formula and find it:
t = S / V = 164 km / 40 km / h = 4.1 hours.
Answer: in 4.1 hours.