Question

Задача:Бригада укладчиков должна было уложить 100 км железной дороги за месяц. За первую декаду (10 дней) бригада уложила 30 км пути, за вторую декаду -36 км.

Answer 1

За 1 час плот проплыл (1/24)-часть пути. 
А за 5 часов (5*1/24=5/24)-части пути.
Ответ: (1/24) за 1 час, (5/24) за 5 часов.

Answer 2

Problem:

The task is for a team of railway builders to lay 100 km of railroad tracks in one month. In the first 10 days, the team laid 30 km of track, and in the second 10 days, they laid 36 km.

Solution:

To find out if the team is on track to complete the task within the given time frame, we need to calculate the average rate at which they are laying tracks.

Let's calculate the average rate of laying tracks per day for the first 20 days:

- Total distance laid in the first 10 days: 30 km - Total distance laid in the second 10 days: 36 km - Total time taken: 20 days

To calculate the average rate per day, we divide the total distance by the total time:

- Average rate per day = (30 km + 36 km) / 20 days = 3.3 km/day

Now, let's calculate the remaining distance and the time required to complete the remaining track:

- Remaining distance = Total distance - Distance laid in the first 20 days = 100 km - (30 km + 36 km) = 34 km - Remaining time = Total time - Time taken in the first 20 days = 30 days - 20 days = 10 days

To find out if the team can complete the remaining track within the remaining time, we need to calculate the average rate per day for the remaining distance:

- Average rate per day for the remaining distance = Remaining distance / Remaining time = 34 km / 10 days = 3.4 km/day

Since the average rate per day for the remaining distance is slightly higher than the average rate per day for the first 20 days, it indicates that the team is on track to complete the remaining track within the given time frame.

In summary, the team of railway builders is on track to complete the task of laying 100 km of railroad tracks within one month.