Question

Андрей ехал на автомобиле из станицы в город со скоростью 55 км час на всю дорогу он потратил 2 часа. Из города в станицу он ехал по той же дороге ,но на мопеде со скоростью 22 километров в час за сколько времени Андрей доедет до станицы?

Answer 1

55*2=110 км - расстояние от станции до города
110/22=5 ч

Answer 2

Problem Analysis

Andrey traveled from the village to the city by car at a speed of 55 km/h and it took him 2 hours. He then traveled back from the city to the village on the same road, but this time on a moped at a speed of 22 km/h. We need to determine how long it will take Andrey to reach the village on the moped.

Solution

To find the time it will take Andrey to reach the village on the moped, we can use the formula:

Time = Distance / Speed

We know that the distance between the city and the village is the same for both trips, so we can use the same distance for the moped trip. Let's assume the distance is represented by 'd'.

For the car trip, the time is given as 2 hours and the speed is 55 km/h. Using the formula, we can calculate the distance:

2 hours = d / 55 km/h

Simplifying the equation, we get:

d = 2 hours * 55 km/h

Now, we can use the distance 'd' and the moped speed of 22 km/h to find the time it will take Andrey to reach the village on the moped:

Time = d / 22 km/h

Substituting the value of 'd' we found earlier, we get:

Time = (2 hours * 55 km/h) / 22 km/h

Simplifying the equation, we get:

Time = 110 / 22 hours

Therefore, it will take Andrey 5 hours to reach the village on the moped.

Answer

Andrey will take 5 hours to reach the village on the moped.