Question

5. A swimming pool is 50 m long and 25 m wide. It is 1.2 m deep at the shallow end and 2 m deep at the other end. n 73 50 m 25 m g 1.2 m 2 m 50.01 m S
Find
(i) the volume of water in the pool when it is full,
(ii) the area of the pool which is in contact with the water.​

Answer 1

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Volume = Length x Breadth x Depth

At shallow end,

V1 = 100 m x 40 mx 1 m = 4000 m³

At deep end,

V2 = 100 m x 40 mx 5 m = 20000 m³

Total volume = V1 + V2

= 4000 m³ + 20000 m³

=24000 m³

Volume of water is therefore 24000 m².

Answer 2

Volume = Length x Breadth x Depth

At shallow end,

V1 = 100 m x 40 mx 1 m = 4000 m³

At deep end,

V2 = 100 m x 40 mx 5 m = 20000 m³

Total volume = V1 + V2

= 4000 m³ + 20000 m³

=24000 m³

Volume of water is therefore 24000 m².