Question

Sonia has rectangular pool in her garden which 4m by 2m .She cleaned it out and wants to refill it with water to a depth of 25cm. How many litres of water does she need ​

Answer 1

Answer:

The best thing to do is to first get all the quantities into decimeters (dm) because 1 cubic dm is exactly the same as 1 liter.

So 4m = 40dm, 2m = 20dm and 25cm = 2.5dm

The volume of the water is then

40dm · 20dm · 2.5dm = 2000dm³

Step-by-step explanation:

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Answer 2

Answer:

20,00,000L

Step-by-step explanation:

here, the rectangular pool is a cuboid because it has length, breadth and height.

therefore, volume of the pool= quantity of water

volume of pool= l × b× h= 400×200×25 cm( converting 4m and 2m into cm)=20,00,000cm³

therefore, quantity of water to be refilled= 20,00,000 L