Question

Котра година, якщо до кінця доби залишилося 4/5 того часу, що вже минув від початку доби?

Answer 1

Ответ:

1)1+4/5=1 4/5-становить 24 год

2)24 : 1 = 1 4/5= 13 1/3 (год) минуло від початку доби

13 1/3 год =13 год 20 хв

відповідь: зараз 13 год 20 хв

Answer 2

Calculating the Time Remaining in the Day

To calculate the time remaining in the day when 4/5 of the day has already passed, we can use the following steps:

1. Determine the Total Time in the Day: - Let's assume the total time in a day is represented by "T" units.

2. Calculate the Time Already Passed: - Since 4/5 of the time has already passed, the time already passed can be represented as (4/5) * T.

3. Calculate the Time Remaining: - The time remaining in the day can be calculated as T - (4/5) * T.

Solution

Using the above steps, we can calculate the time remaining in the day when 4/5 of the time has already passed.

Let's denote the total time in the day as "T". Then, the time remaining in the day can be calculated as:

Time Remaining = T - (4/5) * T

Simplifying the expression, we get:

Time Remaining = T - 4T/5

Time Remaining = 5T/5 - 4T/5

Time Remaining = (5T - 4T)/5

Time Remaining = T/5

So, when 4/5 of the time has already passed, the time remaining in the day is 1/5 of the total time.

This means that if 4/5 of the day has already passed, then 1/5 of the day is remaining.

Conclusion

Therefore, if 4/5 of the day has already passed, then the time remaining until the end of the day is 1/5 of the total time in the day.