Question

В 12:00 дядя Федор пошел в соседнюю деревню. Вместе с ним в том же направлении выбежал пёс Шарик. Добежав до соседней деревни в 14:30, Шарик повернул обратно и встретил дядю Федора в 15:30. Во сколько раз скорость Шарика больше скорости дяди Федора?

Answer 1

14:30-12:00 равно 2:30 равно 2,5ч - Время шарика
15:30-14:30 равно 1:00 равно 1ч время на обратном пути
1/2,5 равно 0,4 пробежал шарик до встречи на обратном пути
1-0,4 равно 0,6 пути прошёл Фёдор до встречи
2,5ч+1ч равно 3,5ч время Фёдора (пусть будет Петя)
3,5-0,6
х-1
х равно 3,5*1/0,6 равно 5 5/6ч надо пете на весь путь
(5 5/6)/2,5равно(35/6)/(5/2) равно (35/6)*2/5) равно 7/3 равно 2 цел 1/3 раза

Answer 2

Calculation of the Speed Ratio

To determine the ratio of the speed of the dog, Sharik, to the speed of Uncle Fyodor, we need to calculate their respective speeds. We are given the following information:

- Uncle Fyodor left at 12:00 and arrived at the neighboring village at 15:30, which means it took him 3 hours and 30 minutes to reach the village. - Sharik left at the same time as Uncle Fyodor and arrived at the neighboring village at 14:30, which means it took him 2 hours and 30 minutes to reach the village.

To calculate the speed, we need to divide the distance traveled by the time taken. Since the distance is the same for both Uncle Fyodor and Sharik (as they traveled in the same direction), we can compare their speeds by comparing the time taken.

The speed ratio can be calculated as follows:

Speed Ratio = Time taken by Sharik / Time taken by Uncle Fyodor

Let's calculate the time taken by Sharik and Uncle Fyodor:

- Uncle Fyodor took 3 hours and 30 minutes, which is equivalent to 3.5 hours. - Sharik took 2 hours and 30 minutes, which is equivalent to 2.5 hours.

Now, let's calculate the speed ratio:

Speed Ratio = 2.5 hours / 3.5 hours

Simplifying the ratio:

Speed Ratio = 5/7

Therefore, the speed of Sharik is 5/7 times the speed of Uncle Fyodor.

Please note that the given information does not provide the exact distance traveled by Uncle Fyodor and Sharik, so we can only compare their speeds based on the given time taken.