
Из трактира в противоположных направлениях выехали два всадника. Через 4ч между ними было 132км.
Скорость одного всадника 18 км. Какова скорость второго всадника?

Ответы на вопрос

132-72=60(км)- путь второго всадника
60:4=15(км/ч)
Ответ: скорость второго всадника 15 км/ч






Problem Analysis
We have two horse riders who start from a tavern and travel in opposite directions. After 4 hours, the distance between them is 132 km. We are given that the speed of one rider is 18 km/h. We need to find the speed of the second rider.Solution
Let's assume the speed of the second rider is x km/h.Since the riders are traveling in opposite directions, their combined speed is the sum of their individual speeds. Therefore, the combined speed of the two riders is 18 km/h + x km/h.
We know that distance = speed × time. After 4 hours, the distance between the two riders is 132 km. Using this information, we can set up the following equation:
Distance = Speed × Time
For the first rider: Distance covered by the first rider = Speed of the first rider × Time = 18 km/h × 4 h = 72 km
For the second rider: Distance covered by the second rider = Speed of the second rider × Time = x km/h × 4 h = 4x km
The sum of the distances covered by the two riders is equal to the total distance between them: 72 km + 4x km = 132 km
Simplifying the equation: 4x km = 132 km - 72 km 4x km = 60 km
Dividing both sides of the equation by 4: x km = 60 km / 4 x km = 15 km/h
Therefore, the speed of the second rider is 15 km/h.
Answer
The speed of the second rider is 15 km/h.

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