Question

2 бабушки вышли из деревни.Шли к следующей деревни 2часа с скоростью 2км.ч. Сколько времени понадобится их внучкам,чтобы пробежать это расстояние со скоростью 8км.ч???

Answer 1

2*2=4(км)- расстояние до деревни
4:8=0,5 часа или 30 минут понадобится внучкам, чтобы пробежать это расстояние

Answer 2

Problem Analysis

Two grandmothers left the village and walked to the next village for 2 hours at a speed of 2 km/h. We need to calculate how much time their granddaughters will need to run this distance at a speed of 8 km/h.

Solution

To find the time it takes for the granddaughters to run the distance, we can use the formula: time = distance / speed.

Let's calculate the distance first. The grandmothers walked for 2 hours at a speed of 2 km/h, so the distance they covered is 2 hours * 2 km/h = 4 km.

Now, we can calculate the time it will take for the granddaughters to run this distance at a speed of 8 km/h. Using the formula mentioned earlier, we have:

time = distance / speed = 4 km / 8 km/h = 0.5 hours.

Therefore, it will take the granddaughters 0.5 hours to run the distance.

Answer

The granddaughters will need 0.5 hours to run the distance at a speed of 8 km/h.