Question

Незнайка стал догонять шпунтика когда расстояние между ними было равно 1 километров 80 метров Незнайка бежал со скоростью 170 метров в минуту а Шпунтик шел со скоростью 80 метров в минуту через сколько минут Незнайка догонит шпунтика?

Answer 1

1)170-80=90(м|мин) скорости Незнайки быстрее чем шпунтика.
2)1080:90=12(мин) Незнайка догонит шпунтика. Ответ: через 12 минут Незнайка догонит шпунтика

Answer 2

Problem Analysis

To solve this problem, we need to determine how long it will take for Neznayka to catch up with Shpuntik. We are given the distance between them, the speed at which Neznayka is running, and the speed at which Shpuntik is walking.

Solution

To find the time it takes for Neznayka to catch up with Shpuntik, we can use the formula:

Time = Distance / Relative Speed

The relative speed is the difference between Neznayka's speed and Shpuntik's speed.

Let's calculate the time it takes for Neznayka to catch up with Shpuntik.

Calculation

Given: - Distance between Neznayka and Shpuntik = 1 kilometer 80 meters = 1080 meters - Neznayka's speed = 170 meters per minute - Shpuntik's speed = 80 meters per minute

Relative Speed = Neznayka's speed - Shpuntik's speed = 170 - 80 = 90 meters per minute

Time = Distance / Relative Speed = 1080 / 90 = 12 minutes

Answer

Neznayka will catch up with Shpuntik in 12 minutes.

Explanation

Neznayka is running at a faster speed than Shpuntik, so he will gradually close the distance between them. After 12 minutes, Neznayka will have covered a distance of 12 minutes * 170 meters per minute = 2040 meters. At this point, he will have caught up with Shpuntik, who would have covered a distance of 12 minutes * 80 meters per minute = 960 meters. Therefore, Neznayka will catch up with Shpuntik after 12 minutes.