Question

Два велосипедиста одновременно выехали навстречу друг другу из двух сел, расстояние между которыми 72 км и встретились через 3 часа. Скорость одного из них 14 км/ч. С какой скоростью ехал второй велосипедист?

Answer 1

1) 14*3 = 42 (км) - проехал один
2) 72 - 42 = 30 (км) - проехал второй
3) 30 : 3 = 10 (км/ч) - скорость второго

Ответ: 10 км/ч

Answer 2

Problem Analysis

Two cyclists start simultaneously from two villages and meet after 3 hours. The distance between the villages is 72 km. The speed of one cyclist is given as 14 km/h. We need to find the speed of the second cyclist.

Solution

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

We can use the formula distance = speed × time to solve this problem.

The distance covered by the first cyclist in 3 hours is 14 km/h × 3 h = 42 km.

Since the total distance between the villages is 72 km, the distance covered by the second cyclist is 72 km - 42 km = 30 km.

Therefore, the speed of the second cyclist is 30 km / 3 h = 10 km/h.

Answer

The second cyclist was traveling at a speed of 10 km/h.

Explanation

The first cyclist traveled a distance of 42 km in 3 hours at a speed of 14 km/h. The remaining distance between the villages is 72 km - 42 km = 30 km. Since both cyclists started simultaneously and met after 3 hours, the second cyclist must have traveled the remaining distance of 30 km in the same 3 hours. Therefore, the speed of the second cyclist is 30 km / 3 h = 10 km/h.