Question

a swimming pool is 20 m in length, 15 m in breadth, and 4 m in depth. find the cost of cementing its floor and walls at the taye of rs 5 per square metre. also find the water required to fill swimming pool completely​

Answer 1

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So, the cost of cementing its floor and walls at the rate of Rs. 12 per square metre is Rs 6960.

Answer 2

Answer

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muscardinus

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Given that,

Length of the swimming pool is, l = 20 m

Breadth of the swimming pool is, b = 15 m

Height of the swimming pool, h = 4 m

To find,

The cost of cementing its floor and walls at the rate of Rs.12 per square metre.

Solution,

The surface area of cuboid to be cemented is given by :

The surface area of the cuboid = area of 4 walls + area of floor

The surface area of the cuboid = Lateral surface area of cuboid + area of floor

The surface area of the cuboid is

For Rs.12 per square metre,

So, the cost of cementing its floor and walls at the rate of Rs.12 per square metre is Rs 6960.

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