A swimming pool is 20m in length ,15 m in breadth ,and 4m in depth .find the cost of cementing its floor and walls at the rate of Rs.12 per square meter.
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L= 20 m
b= 15 m
h= 4 m
First we find the area of floor
=>20x15
=>300 m²
Then, we find area of walls
=>2(20x4) + 2(15x4)
=>2(80 + 60)
=>280 m²
Add both to get total area
=>300+280 = 580 m²
Multiply total area and cost per m²
=>580 x 12
=>Rs. 6960
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b= 15 m
h= 4 m
First we find the area of floor
=>20x15
=>300 m²
Then, we find area of walls
=>2(20x4) + 2(15x4)
=>2(80 + 60)
=>280 m²
Add both to get total area
=>300+280 = 580 m²
Multiply total area and cost per m²
=>580 x 12
=>Rs. 6960
if it is helpful please mark it as brainliest
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