From two villages located at a distance of 27 km, two pedestrians came out to meet each other at the same time

From two villages located at a distance of 27 km, two pedestrians came out to meet each other at the same time. after 3 hours they met. one walked at a speed of 5 km / h at what speed another pedestrian walked to solve the problem in two ways?

Method I:
Let’s find the distance that the first pedestrian traveled: 5 • 3 = 15 (km);
Let’s find the distance that the second pedestrian traveled: 27 – 15 = 12 (km);
Let’s calculate the speed of the second pedestrian: 12: 3 = 4 (km / h).
II method:
Let’s determine the general speed of convergence of pedestrians: 27: 3 = 9 (km / h);
Let’s find the speed of the second pedestrian: 9 – 5 = 4 (km / h).
Answer: 4 km / h is the speed of the second pedestrian.