The distance between the marinas is 864 km. The motor ship went downstream at a speed of 27 km / h
| June 16, 2021 | education
The distance between the marinas is 864 km. The motor ship went downstream at a speed of 27 km / h, and the return journey against the current at a speed of 24 km / h. How many hours did the ship cover all the way back and forth?
To begin with, let us find how long it took the motor ship to travel downstream, if the distance and speed are known from the problem statement:
S = v * t
t = S / v
t1 = 864/27 = 32 h.
Now we find out how long it took the ship to travel upstream:
S = v * t
t = S / v
t 2 = 864/24 = 36 h.
Next, you can find out how many hours the ship took all the way back and forth:
t1 + t2 = 32 + 36 = 68 h.
Answer: the ship covered the whole way back and forth in 68 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.
