Question

Грузовая машина догоняет трактор. а Сейчас между ними расстояние 21,6км. Скорость трактор 29,7 км/ч. Найдите скорость грузовика если известно, а что грузовик догонит трактор через 2/3 часа.​

Answer 1

Решение задачи:

$1) \frac{2}{3} \times 29,7 = 19,8$км - проедет трактор за 2/3 часа

$2)21,6 + 19,8 = 41,4$км - проедет грузовик за 2/3 часа

$3)41,4 \div \frac{2}{3} = 41,4 \times \frac{3}{2} = 62,1$км/ч - скорость грузовика

Ответ: скорость грузовика 62,1 км/ч

Answer 2

Problem Analysis

We are given that a truck is chasing a tractor, and the distance between them is 21.6 km. The tractor's speed is 29.7 km/h. We need to find the speed of the truck if it catches up to the tractor in 2/3 hours.

Solution

To find the speed of the truck, we can use the formula:

Speed = Distance / Time

Let's calculate the time it takes for the truck to catch up to the tractor. We are given that the time is 2/3 hours.

Time = 2/3 hours

Now, let's calculate the speed of the truck using the formula:

Speed = Distance / Time

Substituting the given values:

Speed = 21.6 km / (2/3) hours

To divide by a fraction, we can multiply by its reciprocal:

Speed = 21.6 km * (3/2) / 1 hour

Simplifying the expression:

Speed = 32.4 km / 1 hour

Therefore, the speed of the truck is 32.4 km/h.

Answer

The speed of the truck is 32.4 km/h.