Question

Помогите пожалуйста решить. маша вышла на 4 минуты позже своего брата саши.через сколько минут маша догонит сашу если ее скорость в три больше скорости саши

Answer 1

через 2 мин Маша  догонит Сашу,т.к. при встрече Саша будет в пути 6 мин,а Маша только 2 мин ,скорость прямо пропорциональная.

Answer 2

(4*3=12) соответсвенно 12 минут

Answer 3

Problem Analysis

We are given that Masha left 4 minutes later than her brother Sasha. We need to determine how many minutes it will take for Masha to catch up to Sasha, given that Masha's speed is three times faster than Sasha's speed.

Solution

Let's assume that Sasha's speed is x units per minute. Since Masha's speed is three times faster, her speed will be 3x units per minute.

To find the time it takes for Masha to catch up to Sasha, we can set up the following equation:

Distance covered by Masha = Distance covered by Sasha

The distance covered by Masha is the product of her speed and the time it takes for her to catch up to Sasha. The distance covered by Sasha is the product of his speed and the time he has been traveling.

Let's denote the time it takes for Masha to catch up to Sasha as t minutes.

The equation can be written as:

3x * t = x * (t + 4)

Simplifying the equation:

3x * t = x * t + 4x

Subtracting x * t from both sides:

2x * t = 4x

Dividing both sides by 2x:

t = 2

Therefore, it will take Masha 2 minutes to catch up to Sasha.

Answer

Masha will catch up to Sasha in 2 minutes if her speed is three times faster than Sasha's speed and she left 4 minutes later than him.