In 4 hours the ship covered 136 km. How many hours will it take to cover 238km at the same speed?

We know that the ship covered 136 km in 4 hours.
It is required to calculate how many hours the motor ship will cover a distance of 238 km while moving at the same speed.
First you need to calculate the speed of the ship, for this you need to divide the distance traveled by time.
136/4 = 34 km / h.
Now, having the speed, we will find in how many hours the motor ship will cover the given distance, dividing the distance by the speed of the motor ship.
238/34 = 7 hours
Answer: the ship will cover 238 km in 7 hours.