Question

Наполеон сбежал. Начался переполох. Директор Некрасов рвет и мечет, хочет догнать Наполеона на машине. Между ними 90 км. Машина едет со скоростью 50 км/ч, а Наполеон бежит со скоростью 35 км/ч. Через 3 часа из-за поломки директору пришлось сделать часовую остановку. Догонит ли Некрасов недопеска, если всего они ехали (и бежали) 6 часов?

Answer 1

Ответ:

35×6=210

210+90=300км всего пробежал наполеон

50км×5=250км проехала машина

так и не догнал недопёска

Пошаговое объяснение:

Answer 2

Problem Analysis

In this problem, we are given that Napoleon escaped and Director Nekrasov wants to catch up with him using a car. The distance between them is 90 km, and the car is traveling at a speed of 50 km/h, while Napoleon is running at a speed of 35 km/h. After 3 hours, the car has to make a one-hour stop due to a breakdown. We need to determine if Nekrasov will be able to catch up with Napoleon within the total 6 hours they have been traveling (including the one-hour stop).

Solution

To solve this problem, we need to calculate the distance covered by both Nekrasov and Napoleon within the given time frame.

Let's calculate the distance covered by Nekrasov in the first 3 hours: - Nekrasov's speed is 50 km/h, so in 3 hours, he would cover a distance of 50 km/h * 3 h = 150 km.

After the 3-hour mark, Nekrasov's car stops for 1 hour due to a breakdown. During this time, Napoleon continues running at his speed of 35 km/h. Therefore, Napoleon covers an additional distance of 35 km/h * 1 h = 35 km.

Now, let's calculate the remaining distance between Nekrasov and Napoleon after the 1-hour stop: - The initial distance between them was 90 km. - Nekrasov covered 150 km in the first 3 hours and then stopped for 1 hour, so the remaining distance is 90 km - 150 km - 35 km = -95 km.

Since the remaining distance is negative, it means that Nekrasov has already passed Napoleon and is ahead of him. Therefore, Nekrasov will not be able to catch up with Napoleon within the total 6 hours they have been traveling.

Answer: No, Nekrasov will not be able to catch up with Napoleon within the 6-hour timeframe.