Question

От Москвы до Бреста 1099 км. Из этих городов навстречу друг другу вышли два поезда и встретились через 11 часов. Скорость одного поезда 52 км/ч. Определите скорость другого поезда.

Answer 1

52*11=572
1099-572=527
527:11=47,9 км.ч

Answer 2

Problem Analysis

We are given that the distance between Moscow and Brest is 1099 km. Two trains start from these cities towards each other and meet after 11 hours. The speed of one train is given as 52 km/h. We need to determine the speed of the other train.

Solution

Let's assume the speed of the other train is x km/h. We can use the formula speed = distance / time to find the speed of the second train.

The distance traveled by the first train in 11 hours is 52 km/h * 11 h = 572 km. Since the two trains are traveling towards each other, the sum of the distances traveled by both trains should be equal to the total distance between the cities.

Therefore, the distance traveled by the second train is 1099 km - 572 km = 527 km.

Now, we can use the formula speed = distance / time to find the speed of the second train:

x km/h = 527 km / 11 h

Let's calculate the speed of the second train:

527 km / 11 h = 47.91 km/h

Therefore, the speed of the second train is approximately 47.91 km/h.

Answer

The speed of the second train is approximately 47.91 km/h.