Question

Из двух портов расстояние между которыми равно 83 км одновременно вышли 2 теплохода. Скорость одного теплохода равна 32 км/ч через 4 часа расстояние между двумя теплоходами было равно 355 км. Сколько км проплыл второй теплоход? С какой скоростью он плыл?

Answer 1

1) 32 * 4 = 128 (км) - проплыл первый теплоход за 4 часа;
2) 355 - (128 + 83) = 355 - 211 = 144 (км) - проплыл второй теплоход за 4 часа;
3) 144 : 4 = 36 (км/ч) - скорость второго теплохода.
Ответ: 144 км; 36 км/ч.

Проверка: (32 + 36) * 4 + 83 = 68 * 4 + 83 = 272 + 83 = 355 км - расстояние между теплоходами через 4 часа.

Answer 2

Problem Analysis

We are given that two ships simultaneously set sail from two ports that are 83 km apart. After 4 hours, the distance between the two ships is 355 km. We need to find out how far the second ship has traveled and at what speed it is sailing.

Solution

Let's assume that the speed of the second ship is x km/h.

To find the distance traveled by the second ship, we can use the formula:

Distance = Speed × Time

The first ship has been sailing for 4 hours at a speed of 32 km/h. Therefore, the distance traveled by the first ship is:

Distance1 = Speed1 × Time1 = 32 km/h × 4 hours

After 4 hours, the distance between the two ships is 355 km. So, the distance traveled by the second ship is:

Distance2 = Total Distance - Distance1 = 355 km - (32 km/h × 4 hours)

Now, we can solve for the distance traveled by the second ship:

Distance2 = 355 km - (32 km/h × 4 hours)

To find the speed of the second ship, we can use the formula:

Speed = Distance / Time

The time taken by the second ship to cover the distance is 4 hours. So, the speed of the second ship is:

Speed2 = Distance2 / Time2 = (355 km - (32 km/h × 4 hours)) / 4 hours

Let's calculate the values:

Distance1 = 32 km/h × 4 hours = 128 km

Distance2 = 355 km - 128 km = 227 km

Speed2 = (355 km - (32 km/h × 4 hours)) / 4 hours

Now, let's calculate the values:

Distance1 = 32 km/h × 4 hours = 128 km Distance2 = 355 km - 128 km = 227 km

Speed2 = (355 km - (32 km/h × 4 hours)) / 4 hours

Using the given values, we can calculate the distance traveled by the second ship and its speed.

Calculation

Distance1 = 32 km/h × 4 hours = 128 km

Distance2 = 355 km - 128 km = 227 km

Speed2 = (355 km - (32 km/h × 4 hours)) / 4 hours

Therefore, the second ship has traveled 227 km and its speed is (355 km - (32 km/h × 4 hours)) / 4 hours.

Please note that the speed of the second ship is calculated based on the given information and may not be accurate.

Let me know if there is anything else I can help you with!