Question

Из посёлка в город расстояние между которыми 126 км выехал велосипедист со скоростью 18 км/час. Через 4 часа в том же направлении выехал автобус который прибыл в город одновременно с велосипедистом. С какой скоростью ехал автобус?Действия и ответ.

Answer 1

1) 126:18=7(ч) - ехал велосипедист
2) 7-4=3(ч) - ехал автобус
3) 126:3= 42(км/ч) - скорость автобуса

Answer 2

Problem Analysis

We are given that a cyclist travels from a village to a city, a distance of 126 km, at a speed of 18 km/h. After 4 hours, a bus also starts from the village and arrives at the city at the same time as the cyclist. We need to find the speed of the bus.

Solution

Let's calculate the time taken by the cyclist to reach the city.

The formula to calculate time is:

Time = Distance / Speed

Substituting the given values:

Time taken by the cyclist = 126 km / 18 km/h = 7 hours

Since the bus and the cyclist arrive at the city at the same time, the bus also takes 7 hours to cover the distance.

Now, let's calculate the speed of the bus.

The formula to calculate speed is:

Speed = Distance / Time

Substituting the values:

Speed of the bus = 126 km / 7 hours = 18 km/h

Therefore, the speed of the bus is 18 km/h.

Answer

The bus traveled at a speed of 18 km/h.