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 rate of Rs. 36 per m²
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Answer:
lateral surface Area of cuboid is = 2h(l+b)
= 2 X 4(20+15)
=8 (35)
=8 X 35
= 280 meter square
now we will take area of rectangle = l X b
= 20*15 = 300
= 300 + 280 * rs 36
= rs 20880
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