Question

Мотоциклист выехал из Москвы в Клин со скоростью 45 км/ч. В дороге он сделал 2 остановки: одну на 25 мин,а вторую на 35 мин. В Клин мотоциклист прибыл в 13 ч 20 мин. В котором часу он выехал из Москвы,если расстояние от Москвы до Клина равно 90 км?Решите задачу по действиям.

Answer 1

25+35=60мин=1ч- затратил на остановки

90/45=2ч- затратил на езду

1+23=3ч- затратил на весь путь

13ч20мин-3ч=10ч20мин- во столько выехал 

Answer 2

1.
Сколько мотоциклист потратил на дорогу чистого времени?
90:45=2 часа.
2.
Сколько времени заняла дорога с остановками?
2ч+( 25мин +35 мин)=3 часа
3.
В котором часу мотоциклист выехал из Москвы?
13ч 20 мин-3 часа=10 ч 20 мин

Answer 3

Problem Analysis

To solve this problem, we need to determine the time at which the motorcyclist left Moscow based on the given information. We know that the motorcyclist traveled from Moscow to Klin at a speed of 45 km/h and made two stops along the way, one for 25 minutes and the other for 35 minutes. The total distance between Moscow and Klin is 90 km, and the motorcyclist arrived in Klin at 13:20.

Solution

Let's break down the problem step by step:

1. Calculate the total time spent on the road: - The motorcyclist traveled a distance of 90 km at a speed of 45 km/h. Using the formula `time = distance / speed`, we can calculate the time spent on the road: 2 hours.

2. Calculate the total time spent on stops: - The motorcyclist made two stops, one for 25 minutes and the other for 35 minutes. The total time spent on stops is: 60 minutes.

3. Convert the total time spent on stops to hours: - Since we need to calculate the time at which the motorcyclist left Moscow, we need to convert the total time spent on stops from minutes to hours. There are 60 minutes in an hour, so the total time spent on stops is: 1 hour.

4. Subtract the total time spent on stops from the total time spent on the road: - Subtracting the total time spent on stops (1 hour) from the total time spent on the road (2 hours) gives us the time spent actually riding: 1 hour.

5. Subtract the time spent riding from the arrival time in Klin to find the departure time from Moscow: - The motorcyclist arrived in Klin at 13:20. Subtracting the time spent riding (1 hour) from the arrival time gives us the departure time from Moscow: 12:20.

Therefore, the motorcyclist left Moscow at 12:20.

Answer

Based on the given information, the motorcyclist left Moscow at 12:20 if the distance from Moscow to Klin is 90 km and the motorcyclist traveled at a speed of 45 km/h, making two stops along the way.