Question

a swimming pool is 20m in length, 15m in breadth, 4m in depth. find the cost of cementing its floor and walls at Rs 35 per m^2​

Answer 1

Answer:

Your answer

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Dimensions of a swimming pool : -

Length (l) = 20 m

Breadth (b) = 15 m

Depth or height (h) = 4 m

It's floor and walls are to be cemented.

Area to be cemented = area of base + area of lateral sides

= (l × b) + 2(l + b)h

= [(20 × 15) + {2 × (20 + 15) × 4}] cm²

= (300 + 280) cm²

= 580 cm²

Cost of cementing per m² = Rs 35

So, cost of cementing the swimming pool = Rs (580 × 35) = Rs 20300

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