The boy left school and went home. He covered the first kilometer of the journey in 0.2 hours, and the remaining 2 km
| December 31, 2020 | education
The boy left school and went home. He covered the first kilometer of the journey in 0.2 hours, and the remaining 2 km was brought up by a friend on a bicycle, spending 0.1 hours. What was the average speed of the boy?
The speed of the first part of the route was: V1 = 1 km / 0.2 h = 5 km / h
The speed of the second part of the track was: V2 = 2 km / 0.1 h = 20 km / h
Boy’s average speed: (V1 + V2) / 2 = (5 + 20) / 2 = 12.5 km / h
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
