Question

Из пунктов А и В одновременно навстречу друг другу выехали 2 автомобиля.Первый проходит расстояние между А и В за 3 часа а второй за 4 часа .Состоялась ли встреча автомобилей , если они находятся в пути 1 час , 2 часа.

Answer 1

первый за час проходил 1/3 всего пути , второй 1/4 - ищем общий знаменатель это: 4/12 и 3/12, следовательно если они будут ехать 1 час то они не встретятся, а если 2 то - да, они встретятся поскольку первый за два часа проедет 8/12 всего пути а второй 6/12 а 8/12+6/12 = 1 целая 2/12 - следовательно они пересекались

Answer 2

Problem Analysis

Two cars, A and B, are traveling towards each other. Car A covers the distance between A and B in 3 hours, while car B covers the same distance in 4 hours. We need to determine if the cars will meet if they have been traveling for 1 hour and 2 hours, respectively.

Solution

To solve this problem, we can use the formula: distance = speed × time. We'll calculate the speed of each car and then use it to find the distance covered by each car after 1 hour and 2 hours.

Calculations

Let's calculate the speed of each car first: - Speed of car A = Distance / Time = (A to B) / 3- Speed of car B = Distance / Time = (A to B) / 4 Now, we can calculate the distance covered by each car after 1 hour and 2 hours: - Distance covered by car A in 1 hour = Speed of car A × 1 - Distance covered by car A in 2 hours = Speed of car A × 2 - Distance covered by car B in 1 hour = Speed of car B × 1 - Distance covered by car B in 2 hours = Speed of car B × 2

Results

After performing the calculations, we can determine if the cars will meet based on the distances covered by each car after 1 hour and 2 hours.