Question

Две лодки одновременно отошли от пристани в противоположных направлениях : скорость первой 75м/мин, второй 45м/мин. Сколько метров прошла вторая лодка, если первая прошла 225 м?

Answer 1

Ответ:

135 метров

Пошаговое объяснение:

225: 75= 3 ( мин)- время в пути 1 лодки

45*3=135 ( м)

Answer 2

Problem Analysis

We are given that two boats departed from a dock simultaneously in opposite directions. The first boat has a speed of 75 m/min, and the second boat has a speed of 45 m/min. We need to determine how many meters the second boat has traveled if the first boat has traveled 225 m.

Solution

To solve this problem, we can use the formula: distance = speed × time.

Let's assume that the second boat traveled for t minutes. Since the boats are moving in opposite directions, the total distance covered by both boats is equal to the sum of the distances covered by each boat.

The distance covered by the first boat is given as 225 m, and its speed is 75 m/min. Therefore, the time taken by the first boat can be calculated as follows:

225 m = 75 m/min × t min

Simplifying the equation, we find:

t = 225 m / 75 m/min = 3 min

Now, let's calculate the distance covered by the second boat. The speed of the second boat is 45 m/min, and the time taken is 3 minutes:

Distance covered by the second boat = 45 m/min × 3 min = 135 m

Therefore, the second boat has traveled 135 meters.

Answer

The second boat has traveled 135 meters.