From a pool in the shape of a rectangular parallelepiped and filled with 1.2 m of water

From a pool in the shape of a rectangular parallelepiped and filled with 1.2 m of water, all the water was pumped out using a pump in 16 hours. How long will it take to pump out water from the same pool, filled to 1.5 m, if the pump capacity is 3: 5 …

First, let’s find the capacity of the first pump. To do this, we divide the given height of the water in the pool by the time it takes for the pump.

1) 1.2: 16 = 0.075 m / h – capacity of the first pump.

Now we will find the productivity of the second pump if their productivity is correlated as 3: 5.

2) 0.075 * 5: 3 = 0.125 m / h – the productivity of the second pump.

Now we can find time for the second pump.

3) 0.5: 0.125 = 12 hours.

Answer: The second pump will take 12 hours to pump out the water.