Question

Двоє велосипедистів виїхали із села одночасно у протилежних напрямках. Швидкість кожного 12 км/год. Через скільки годин відстань між ними буде 72 км.

Answer 1

1) 12+12=24 км/ч - скорость отдаления.
2) 72 : 24=3 часа
Ответ: через 3 часа.

Answer 2

Problem Analysis

We have two cyclists who start simultaneously from a village and travel in opposite directions. The speed of each cyclist is 12 km/h. We need to determine how many hours it will take for the distance between them to be 72 km.

Solution

To solve this problem, we can use the formula: time = distance / speed. Since the two cyclists are moving in opposite directions, their speeds will add up. Therefore, the combined speed of the two cyclists is 12 km/h + 12 km/h = 24 km/h.

Let's calculate the time it takes for the distance between them to be 72 km using the formula mentioned above:

time = distance / speed

Substituting the values: time = 72 km / 24 km/h

Simplifying the expression: time = 3 hours

Therefore, it will take 3 hours for the distance between the two cyclists to be 72 km.

Answer

The distance between the two cyclists will be 72 km after 3 hours.