Question

Решить задачу. Бак наполняется через кран за 17 минут. Какая часть бака останется незаполненной, если открыть кран на 2 минуты? Помогите плиииз!!!

Answer 1

2 мин заполнится 2/17 бака
1-2/17=15/17
незаполненой останется 15/17 бака

Answer 2

Problem Analysis

We are given that a tank is filled through a faucet in 17 minutes. We need to find out what fraction of the tank will remain unfilled if the faucet is left open for 2 minutes.

Solution

To solve this problem, we can use the concept of rates. Let's assume that the tank has a capacity of 1 unit (it could be any unit of measurement, such as liters or gallons).

We are given that the tank is filled in 17 minutes. This means that the rate at which the tank is filled is 1 unit per 17 minutes. Therefore, the rate of filling is 1/17 units per minute.

If the faucet is left open for 2 minutes, the amount of water that will flow into the tank can be calculated by multiplying the rate of filling by the time the faucet is open. In this case, the amount of water that will flow into the tank is (1/17) * 2 = 2/17 units.

Since the tank has a capacity of 1 unit, the fraction of the tank that will remain unfilled is equal to 1 - (2/17) = 15/17.

Therefore, if the faucet is left open for 2 minutes, approximately 15/17 or 88.24% of the tank will remain unfilled.

Answer

If the faucet is left open for 2 minutes, approximately 15/17 or 88.24% of the tank will remain unfilled.

Please let me know if you need any further assistance!