A rectangular container 30cm by 20cm by 15cm was completely filled with water. The water was poured into another container which measured 25cm by 20cm by 28cm. What was the height of the second container?

Didn't you state the dimensions of the second container ??

A cubical vessel is filled with 27000cm3 find the side

To find the height of the second container, we need to know the volume of water transferred from the first container.

The volume of water in the first container can be calculated as the product of its length, width, and height.
Volume of water in the first container = 30cm * 20cm * 15cm

Next, we can find the volume of the second container using its dimensions.
Volume of the second container = 25cm * 20cm * 28cm

Now, let's substitute the known values and solve for the height of the second container.

Volume of water in the first container = Volume of the second container
30cm * 20cm * 15cm = 25cm * 20cm * height

Simplifying the equation:
9000cm³ = 5000cm² * height
height = 9000cm³ / (5000cm²)
height = 1.8cm

Therefore, the height of the second container is 1.8cm.