Question

велосипедист от города до дачи ехал 6 часов со скоростью 12км/ч на обратный путь он затратил 4 часа. на сколько км в час велосипедист изменил свою скорость

Answer 1

1)(6*12):4=18(км ч)    2)18-12=6(км ч)

Answer 2

To find how much the cyclist changed his speed, we first need to calculate the distances he traveled on the two trips.

Let's use the formula: Distance = Speed × Time.

For the first trip from the city to the dacha: Distance = 12 km/h × 6 hours = 72 km.

For the return trip from the dacha to the city: Distance = 12 km/h × 4 hours = 48 km.

Now, let's find the difference in distances: Difference = Distance (City to Dacha) - Distance (Dacha to City) Difference = 72 km - 48 km = 24 km.

The cyclist changed his speed by covering an extra 24 kilometers on the way from the city to the dacha compared to the return journey.