Question

7)

A rectangular container is 40 cm by 30 cm by 25 cm. It is filled with
3
water up to 5
of its height. Half of the water is then poured out. How
much water is left in the container? Give your answer in litres.​

Answer 1

Answer: 9 L

Explanation:

Given

The dimension of the rectangular container is
`40* 30* 25\ cm^3`

It is filled with
`(3)/(5)` of the height

Water present in the container

`\Rightarrow 40* 30* 25* (3)/(5)\\\\\Rightarrow 18000\ cm^3`

Also,
`1\ L=1000\ cm^3`

`\therefore 18,000\ cm^3=18\ L`

Now, half of the water is poured out

So, half is left

`\Rightarrow (18)/(2)=9\ L`

Thus, 9 L of water is left in the container