Question

Задача:От пристани одновременно отошли пароход и моторная лодка.Через 3 часа моторная лодка была впереди парохода на расстоянии 108 км.Найди скорость моторной лодки,если скорость парохода 24 км/ч.

Answer 1

1). 24*3=72 (км) - прошёл за 3 часа катер
2). 72+108=180 (км) - прошла за 3 часа лодка
3). 180:3=60 (км/ч)
Ответ: скорость моторной лодки равна 60 км/ч.

Answer 2

Problem Analysis

We are given that a steamship and a motorboat left the pier at the same time. After 3 hours, the motorboat was ahead of the steamship by a distance of 108 km. We need to find the speed of the motorboat, given that the speed of the steamship is 24 km/h.

Solution

Let's assume the speed of the motorboat is x km/h.

In 3 hours, the motorboat travels a distance of 3x km. At the same time, the steamship travels a distance of 24 * 3 = 72 km.

According to the problem, the motorboat is ahead of the steamship by 108 km. So, we can set up the equation:

3x - 72 = 108

Simplifying the equation:

3x = 108 + 72 3x = 180 x = 180 / 3 x = 60

Therefore, the speed of the motorboat is 60 km/h.