Question

Два теплохода вышли из двух портов навстречу друг другу. Первый проходит 180 км в день, второй-220 км. На какой день они встретятся, если расстояние между портами 1900 км?

Answer 1

1 тепл-180км

2 тепл-220км

Расстояние-1900 км

На какой день они встретятся-?

 

 1900:(180+220)=1900:400=4 и 300 км ( в остатке),

значит они проплывут 4 дня и на 5-й день встретятся

Ответ: встретятся на 5-й день 

Answer 2

1)180+220=400км/день-скорость сближения.

2)1900:400=4.75день-встретятся.

Ответ:на 5 день втретятся.

Answer 3

Problem Analysis

We have two ships traveling towards each other from two different ports. The first ship travels at a speed of 180 km per day, while the second ship travels at a speed of 220 km per day. The distance between the ports is 1900 km. We need to determine on which day the two ships will meet.

Solution

To find the day on which the two ships will meet, we can use the formula:

Time = Distance / Speed

Let's calculate the time it takes for each ship to reach the meeting point.

Ship 1: - Speed: 180 km/day - Distance: 1900 km - Time taken by Ship 1 = Distance / Speed = 1900 km / 180 km/day = 10.5555 days

Ship 2: - Speed: 220 km/day - Distance: 1900 km - Time taken by Ship 2 = Distance / Speed = 1900 km / 220 km/day = 8.6364 days

Since the two ships are traveling towards each other, the total time taken for them to meet will be the sum of the times taken by each ship.

Total time taken = Time taken by Ship 1 + Time taken by Ship 2 = 10.5555 days + 8.6364 days = 19.1919 days

However, we need to find the day on which they meet, so we need to round up the total time to the nearest whole number.

The two ships will meet on the 20th day.

Answer

The two ships will meet on the 20th day.