Question

От одной пристани отплыл в 11 часов ночи паррход проходивший по 15 км час а от другой пристани навстречу ему в 3 часа следующего утра вышел другой порход проходивший по 17 км в час через сколько часов после отпоытия второго порохода они встретятся если между пристанчми 380 км в час

Answer 1

----------------------------------------------

Answer 2

Problem Analysis

We have two ships departing from different ports and traveling towards each other. The first ship departs at 11 PM and travels at a speed of 15 km/h, while the second ship departs at 3 AM the next morning and travels at a speed of 17 km/h. The distance between the ports is 380 km. We need to determine how many hours after the departure of the second ship the two ships will meet.

Solution

To solve this problem, we can use the formula: time = distance / speed. We'll calculate the time it takes for each ship to travel and then find the time difference between their departures.

Let's calculate the time it takes for the first ship to travel: - Distance traveled by the first ship = 380 km (distance between the ports) - Speed of the first ship = 15 km/h - Time taken by the first ship = distance / speed = 380 km / 15 km/h = 25.33 hours

Now, let's calculate the time it takes for the second ship to travel: - Distance traveled by the second ship = 380 km (distance between the ports) - Speed of the second ship = 17 km/h - Time taken by the second ship = distance / speed = 380 km / 17 km/h = 22.35 hours

The time difference between the departures of the two ships is: - Time difference = time taken by the second ship - time taken by the first ship = 22.35 hours - 25.33 hours = -2.98 hours

Since the time difference is negative, it means that the second ship departs before the first ship. However, we need to find the time after the departure of the second ship when the two ships meet. To do this, we'll add the time difference to the time taken by the second ship: - Time after the departure of the second ship when the two ships meet = time taken by the second ship + time difference = 22.35 hours + (-2.98 hours) = 19.37 hours

Therefore, the two ships will meet approximately 19.37 hours after the departure of the second ship.

Answer

The two ships will meet approximately 19.37 hours after the departure of the second ship.

Note: The calculated time is an approximation and may not be exact due to rounding errors.