Question

15. The dimensions of a swimming pool are 30 m
long, 20 m wide, and depth 9 m. If 1800 KL of
water is already filled in the pool, then,
a. Find the height of the water in the pool now.
b. How many more litres of water is required to fill
the pool up to a height of 8 m only? plzzzz read the answer properly and give the answer ... it's very necessary​

Answer 1

Answer:

a- 3 metre. b- 3600000 Litres

Step-by-step explanation:

( I ) Volume of pool = 20 * 30 * 9 ( m³ ) = 5400 m³

Now , 1800 KL = 1800 m³

Height of water in pool = Volume of pool / Volume of water

=) 5400 / 1800 = 3 metre

Hence , the height of water in pool is 3 metres .

( ii ) Now , volume of water in pool = 1800 KL

Also , volume of pool = 5400 m³ = 5400 KL

( 1 KL = 1 m³ )

Hence , volume of water required to fill the pool is :

=) 5400 - 1800 = 3600 KL of water

3600 KL = 3600 * 1000 = 3600000 Litres

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