Question

1. Туристам нужно проплыть на плоту вниз по реке 72 км. Скорость, с которой течёт река 2 km/h. Сколько времени у них уйдёт на это путешествие, если за время пути они сделают ещё 5 остановок по 80 минут каждая? -​

Answer 1

Ответ:

42 години 40 хвилин

Пошаговое объяснение:Час подорожі на плоту

= Відстань / Швидкість = 72 км / 2 км/год =

36 годин 5 зупинок * 1 година 20 хвилин = 5

годин + 5 * 20 хвилин = 5 годин + 100 хвилин

= 5 годин + 1 година 40 хвилин = 6 годин 40 хвилин Тепер додамо цей час до часу подорожі на плоту:

36 годин + 6 годин 40 хвилин = 42 години 40

хвилин

Answer 2

Calculation of Travel Time on the River

To calculate the travel time for tourists on the river, we need to consider the distance they need to cover and the speed at which the river flows.

Given: - Distance to be covered: 72 km - River speed: 2 km/h

To find the time it takes to travel the entire distance, we can divide the distance by the speed of the river:

Travel time = Distance / Speed

Substituting the given values:

Travel time = 72 km / 2 km/h

Simplifying the calculation:

Travel time = 36 hours

So, without considering any stops, it would take the tourists approximately 36 hours to complete the journey.

Stops and Additional Time

The question mentions that the tourists will make 5 stops during their journey, with each stop lasting 80 minutes. We need to calculate the total additional time spent on these stops and add it to the travel time.

To find the total additional time spent on stops, we can multiply the number of stops by the duration of each stop:

Total additional time = Number of stops * Duration of each stop

Substituting the given values:

Total additional time = 5 stops * 80 minutes

Simplifying the calculation:

Total additional time = 400 minutes

Now, we need to convert the additional time from minutes to hours, as the travel time is given in hours. Since there are 60 minutes in an hour, we can divide the total additional time by 60:

Additional time in hours = Total additional time / 60

Substituting the given value:

Additional time in hours = 400 minutes / 60

Simplifying the calculation:

Additional time in hours = 6.67 hours

Therefore, the total additional time spent on stops is approximately 6.67 hours.

Total Travel Time

To find the total travel time, we need to add the travel time without stops to the additional time spent on stops:

Total travel time = Travel time + Additional time

Substituting the given values:

Total travel time = 36 hours + 6.67 hours

Simplifying the calculation:

Total travel time = 42.67 hours

Therefore, considering the stops, it would take the tourists approximately 42.67 hours to complete the journey.

Please note that the above calculations are based on the information provided in the question.