Question

Открыли кран с которого за 1 мин выливается 20л воды и за 8 мин наполнили ванную. Потом кран закрыли и открыли сливной отвор, через который вся вода вытекла за 4 мин. Сколько литров води вытикало за 1 мин? Помогите пожалуйста

Answer 1

20*8=160 л всего воды
160:4=40 л за 1 мин
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Answer 2

)Сколько литров воды вмещает ванна?
20*8=160(литров).
2)Сколько литров воды вытекло за одну минуту?
160:4=40(лит/мин).
Ответ:40 лит/мин.

Answer 3

Calculation of Water Flow Rate

To determine the amount of water that flows out of the drain per minute, we can use the information provided.

According to the given information: - The faucet releases 20 liters of water in 1 minute. - The bathtub is filled in 8 minutes. - The drain empties the entire bathtub in 4 minutes.

To find the flow rate of water through the drain per minute, we can calculate the difference between the amount of water filled in the bathtub and the amount of water emptied by the drain in 1 minute.

Let's calculate it step by step:

1. Calculate the amount of water filled in the bathtub per minute: - The bathtub is filled in 8 minutes, so the rate of filling is 20 liters/8 minutes = 2.5 liters per minute.

2. Calculate the amount of water emptied by the drain per minute: - The drain empties the entire bathtub in 4 minutes, so the rate of emptying is 20 liters/4 minutes = 5 liters per minute.

3. Calculate the net flow rate of water through the drain per minute: - Subtract the rate of filling from the rate of emptying: 5 liters per minute - 2.5 liters per minute = 2.5 liters per minute.

Therefore, the drain allows 2.5 liters of water to flow out per minute.

Please let me know if you need any further assistance!