The boat sailed upstream of the river for 3 hours at a speed of 42 km / h. How many hours will it take him
| September 14, 2021 | education
The boat sailed upstream of the river for 3 hours at a speed of 42 km / h. How many hours will it take him to swim 144 km along the river, if the speed of the river is 3 km / h?
1. Let’s calculate the boat’s own speed.
42 + 3 = 45 kilometers.
2. Let’s find at what speed the boat was going down the river per hour.
45 + 3 = 48 kilometers.
3. Let us determine how long it will take it to cover the distance of 144 kilometers along the river, if it is known that its speed is 48 kilometers per hour.
144/48 = 3 hours.
Answer: The boat will cover this distance in 3 hours.
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.
