Question

Гоночная машина первый участок дороги в 200 км проехала за 1 ч. Второй участок в 30 км за 15 мин. На каком из участков машина двигалась быстрее? Реши задачу и запиши ответ.

Answer 1

1)200:1=200(км/ч) - машина проехала на первом участке
2) 30:15=2(км/ч)- машина ехала на втором участке
ответ: на первом участке машина двигалась быстрее (200км/

Answer 2

Problem Analysis

We are given two sections of a road and the time it took for a racing car to travel each section. The first section is 200 km long and the car traveled it in 1 hour. The second section is 30 km long and the car traveled it in 15 minutes. We need to determine on which section the car was moving faster.

Solution

To compare the speed of the car on each section, we need to calculate the average speed for each section. The average speed is calculated by dividing the distance traveled by the time taken.

Let's calculate the average speed for each section:

1. First section: - Distance: 200 km - Time: 1 hour - Average speed = Distance / Time = 200 km / 1 hour = 200 km/h.

2. Second section: - Distance: 30 km - Time: 15 minutes = 15/60 hours = 0.25 hours - Average speed = Distance / Time = 30 km / 0.25 hours = 120 km/h.

Comparing the average speeds, we can see that the car was moving faster on the first section of the road, where it traveled at an average speed of 200 km/h.

Therefore, the car was moving faster on the first section of the road.

Answer

The car was moving faster on the first section of the road.