Question

Из Харькова в Запорожье выехал мотоциклист и одновременно навстречу ему из Запорожья выехал мотороллер.Скорость мотоциклиста 55 км\ч,а мотороллера 30 км\ч. Через 3 часа они встретились.Какое расстояние между городами?

Answer 1

55*3=165(км) -ехал мотоциклист 
30*3=90(км)-ехал мотороллер
165+90=255(км)
Ответ: расстояние между городами 255 километров

Answer 2

55+30=85 км/час скорость сближения мотоциклиста с мотороллером                  85*3=255 км расстояние между городами

Answer 3

Problem Analysis

We are given that a motorcyclist and a scooter rider start simultaneously from Kharkiv and Zaporizhia, respectively. The motorcyclist's speed is 55 km/h, and the scooter rider's speed is 30 km/h. After 3 hours, they meet each other. We need to find the distance between the two cities.

Solution

To find the distance between Kharkiv and Zaporizhia, we can use the formula:

Distance = Speed × Time

Let's calculate the distance traveled by the motorcyclist and the scooter rider separately and then find the total distance between the two cities.

1. Distance traveled by the motorcyclist: - Speed of the motorcyclist = 55 km/h - Time traveled = 3 hours - Distance = Speed × Time = 55 km/h × 3 hours = 165 km

2. Distance traveled by the scooter rider: - Speed of the scooter rider = 30 km/h - Time traveled = 3 hours - Distance = Speed × Time = 30 km/h × 3 hours = 90 km

3. Total distance between Kharkiv and Zaporizhia: - Distance traveled by the motorcyclist + Distance traveled by the scooter rider = 165 km + 90 km = 255 km

Therefore, the distance between Kharkiv and Zaporizhia is 255 km.

Answer

The distance between Kharkiv and Zaporizhia is 255 km.