Question

Саша и Дима идут по аллее навстречу друг другу. Сейчас между ними 200 метров. Через сколько времени они встретятся , если скорость Саши 45м/мин , а скорость Димы на 10м/мин больше?

Answer 1

скорость саши = 45м/мин
1) 45+10=55м/мин- (скорость димы)

2) 55+45=100м/мин (проходят оба)

3) 200/100=2мин

ответ: через 2 минуты

Answer 2

Problem Analysis

We are given that Sasha and Dima are walking towards each other along an alley. The distance between them is 200 meters. Sasha's speed is 45 m/min, and Dima's speed is 10 m/min faster than Sasha's speed.

We need to determine how long it will take for them to meet.

Solution

To solve this problem, we can use the formula:

Time = Distance / Speed

Let's calculate the time it will take for Sasha and Dima to meet.

1. Sasha's speed is given as 45 m/min. 2. Dima's speed is 10 m/min faster than Sasha's speed, so Dima's speed is 45 + 10 = 55 m/min.

The distance between Sasha and Dima is 200 meters.

Using the formula, we can calculate the time it will take for them to meet:

Time = Distance / Speed

For Sasha: Time = 200 / 45 = 4.44 minutes

For Dima: Time = 200 / 55 = 3.64 minutes

Since they are walking towards each other, we can take the maximum of these two times to determine when they will meet.

Therefore, they will meet in approximately 4.44 minutes.