The train made a forced stop for 24 minutes. Having increased its speed by 10 km / h, it made up the lost time
| April 10, 2021 | education
The train made a forced stop for 24 minutes. Having increased its speed by 10 km / h, it made up the lost time on the way of 80 km. At what speed did the train move along this route?
24 minutes = 2/5 hours
80 / (x + 10) = 2/5.
Let’s solve this equation and get the answer: 80 * 5 = 2 * (x + 10); 80 * 5 = 2 * x + 2 * 10; 400 = 2 * x + 20; 2 * x = 400 – 20; 2 * x = 380; x = 190 km / h.
Answer: 190 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.
