Question

Через узкую трубу бассейн вместимостью 18000литров воды наполняется за 6 часов а через широкую-за 3 часа За сколько часов этот бассейн наполнится через две трубы. СКАЖИТЕ ПЛИЗ!!!

Answer 1

18000: 6 = 3000 литров в час наполняется через узкую трубу
18000 : 3 = 6000 литров в час наполняется через широкую трубу
18000: (3000 + 6000) =через 2 часа бассейн наполнится через две трубы.       

Answer 2

Solution:

To solve this problem, we can use the concept of work done. The rate of work done by a pipe is inversely proportional to the time it takes to fill the pool. Let's denote the rate of work done by the narrow pipe as R1 and the rate of work done by the wide pipe as R2.

Given: - Capacity of the pool, V = 18000 liters - Time taken to fill the pool through the narrow pipe, T1 = 6 hours - Time taken to fill the pool through the wide pipe, T2 = 3 hours

We can use the formula: Work = Rate × Time

The combined rate of both pipes is the sum of their individual rates: R = R1 + R2

We can use the following formula to find the combined rate: R = V / T

Where: - V is the volume of the pool - T is the time taken to fill the pool

Calculation:

Let's calculate the rates of work done by each pipe:

For the narrow pipe: R1 = V / T1 = 18000 / 6 = 3000 liters/hour

For the wide pipe: R2 = V / T2 = 18000 / 3 = 6000 liters/hour

Now, we can find the combined rate: R = R1 + R2 = 3000 + 6000 = 9000 liters/hour

Finally, we can find the time taken to fill the pool using both pipes: T = V / R = 18000 / 9000 = 2 hours

Answer:

The pool will be filled in 2 hours when both pipes are used together.