Question

Два путешественника добирались из пункта А в пункт В.Первый путешественник сначала прошёл половину пути пешком, а затем вторую половину пути проехал на автобусе.Второй путешественник тоже шёл сначала пешком с такой же скоростью,как и первый путешественник, а затем тоже ехал на автобусе с такой же скоростью, как и первый путешественник.При этом оказалось, что второй путешественник шёл пешком столько же времени, сколько ехал на автобусе.Какой путешественник добрался из А в В за меньшее время?

Answer 1

Помойму 1 пут. добрался быстрее потому что 2 пут. ехал с такой же скоростью как и 1 но автобус едет быстрее значит он тоже сел на автобу только позже

Answer 2

Problem Analysis

Two travelers are going from point A to point B. The first traveler walks half the distance and then takes a bus for the other half. The second traveler also walks the same distance as the first traveler and then takes a bus at the same speed. It is given that the second traveler spends as much time walking as riding the bus. We need to determine which traveler reaches from A to B in less time.

Solution

Let's analyze the situation step by step.

1. First Traveler's Journey: - The first traveler walks half the distance and then takes a bus for the other half. - Let's assume the total distance from A to B is D. So, the first traveler walks D/2 and then takes a bus for the remaining D/2.

2. Second Traveler's Journey: - The second traveler also walks the same distance as the first traveler and then takes a bus at the same speed. - Let's assume the speed of the bus is V and the speed of the second traveler is W.

3. Time Spent by the Second Traveler: - It is given that the second traveler spends as much time walking as riding the bus. - Let's denote the time spent walking as T1 and the time spent riding the bus as T2.

4. Comparison of Travel Times: - We need to compare the total time taken by each traveler to reach from A to B.

Calculation

Let's calculate the time taken by each traveler and compare the results.

The time taken for the first traveler to walk half the distance can be calculated using the formula: \[ T1 = \frac{D}{2W} \]

The time taken for the first traveler to ride the bus for the remaining half of the distance can be calculated using the formula: \[ T2 = \frac{D}{2V} \]

The time taken for the second traveler to walk the entire distance can be calculated using the formula: \[ T1 = \frac{D}{W} \]

The time taken for the second traveler to ride the bus for the entire distance can be calculated using the formula: \[ T2 = \frac{D}{V} \]

Conclusion

After comparing the total time taken by each traveler, we can determine which traveler reaches from A to B in less time.