Question

Минутка пробегает на лыжах один круг за 7 секунд.А Стасик за 6 секунд. Минутка пробежал 4 круга, а Стасик 5 кругов. Кто из них раньше прибежит к началу трассы, если они стартовали одновременно?

Answer 1

7*4=28(с) нужно Минутке
6*5=30(с) Стасику
ответ: Минутка

Answer 2

Problem Analysis

We are given that Minutka completes one lap on skis in 7 seconds, while Stasik completes one lap in 6 seconds. Minutka completes 4 laps, and Stasik completes 5 laps. We need to determine who reaches the start of the track first if they start at the same time.

Solution

To solve this problem, we can compare the total time taken by Minutka and Stasik to complete their respective laps.

Let's calculate the total time taken by Minutka to complete 4 laps: - Minutka completes one lap in 7 seconds. - Therefore, Minutka completes 4 laps in 4 * 7 = 28 seconds.

Now, let's calculate the total time taken by Stasik to complete 5 laps: - Stasik completes one lap in 6 seconds. - Therefore, Stasik completes 5 laps in 5 * 6 = 30 seconds.

Comparing the total times, we can see that Minutka takes 28 seconds to complete 4 laps, while Stasik takes 30 seconds to complete 5 laps. Therefore, Minutka reaches the start of the track first if they start at the same time.

Answer

If Minutka and Stasik start at the same time, Minutka will reach the start of the track first.

Note: The sources provided do not contain relevant information for this specific problem.