Question

За один час через верхний кран в бак вливается 20 ведер воды,а через нижний кран за это же время вытекает 13 ведер воды.Сколько ведер воды нальётся в бак за 2 часа,если открыть оба крана одновременно?

Answer 1

20+13=33 ведер воды нальется из верхнего и нижнего крана за 1 час
33*2=66 ведер воды нальется за два часа

Answer 2

1) 20-13=7 (вёдер) - воды - остаётся в баке
2) 7*2=14 (вёдер)
Ответ: за два часа в бак нальётся 14 вёдер воды.

Answer 3

Calculation of Water Flow

To determine the amount of water that will be poured into the tank in 2 hours when both taps are opened simultaneously, we need to calculate the net flow rate of water into the tank.

Let's start by calculating the net flow rate per hour for each tap:

- The upper tap pours in 20 buckets of water per hour. - The lower tap drains out 13 buckets of water per hour.

To find the net flow rate, we subtract the flow rate of the lower tap from the flow rate of the upper tap:

Net flow rate = Flow rate of upper tap - Flow rate of lower tap

Net flow rate = 20 buckets/hour - 13 buckets/hour

Net flow rate = 7 buckets/hour

Now, we can calculate the total amount of water that will be poured into the tank in 2 hours by multiplying the net flow rate by the number of hours:

Total water poured into the tank = Net flow rate * Number of hours

Total water poured into the tank = 7 buckets/hour * 2 hours

Total water poured into the tank = 14 buckets

Therefore, 14 buckets of water will be poured into the tank in 2 hours when both taps are opened simultaneously.