Question

Из Москвы в Санкт-Петербург , расстояние между которыми 650 км, выехал автобус со скоростью 70км/ч. Из Санкт-Петербурга в Москву одновременно отправился поезд со скоростью 60км/ч. Кто из них будет дальше от Москвы через 4 часа?

Answer 1

Поезд потому что он ехал с меньшей скоростью

Answer 2

Calculating the Distance Traveled

To determine which vehicle will be farther from Moscow after 4 hours, we can calculate the distance each vehicle will have traveled in that time.

The bus travels at a speed of 70 km/h, so in 4 hours, it will cover a distance of 70 km/h * 4 h = 280 km from Moscow.

The train travels at a speed of 60 km/h, so in 4 hours, it will cover a distance of 60 km/h * 4 h = 240 km from St. Petersburg.

Comparing Distances

After 4 hours, the bus will be 280 km from Moscow, and the train will be 240 km from St. Petersburg. To determine which vehicle is farther from Moscow, we need to convert the train's distance from St. Petersburg to the distance from Moscow.

Calculating Train's Distance from Moscow

The distance between Moscow and St. Petersburg is 650 km. Since the train has traveled 240 km from St. Petersburg, its distance from Moscow would be 650 km - 240 km = 410 km from Moscow.

Comparing Final Distances

After 4 hours, the bus will be 280 km from Moscow, and the train will be 410 km from Moscow. Therefore, the train will be farther from Moscow after 4 hours.

This calculation assumes constant speeds for both the bus and the train, without considering factors such as stops, acceleration, or deceleration.