A pedestrian moving at a speed of 4 km per hour was on the way for 3 hours. How much distance did the pedestrian walk?

The pedestrian moved evenly. For every hour of his movement, he covered the same distance.

The distance traveled by a person in an hour is called the speed of movement.

We recall the formula for determining the speed with uniform movement:

V = S / t;

V – speed with uniform motion;

S – distance traveled;

t – travel time.

Let us derive the distance from the formula and determine its value:

S = Vt = 4 km / h * 3 hours = 12 km.

Answer: the pedestrian covered 12 km in 3 hours.