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Solve the following
1] A swimming pool is 50m in length, 30m in breadth and 2m in depth. Find the cost of cementing its floor and
walls at the rate of 30 Rs per meter square
x 40cm x 20cm
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Answer:
Swimming pool surface area
= 2 ( bh + hl ) + lb
= 2 ( 30 × 2 + 2 × 50 ) + 50 × 30
= 2 ( 60 + 100 ) + 1500
= 2 × 160 + 1500
= 320 + 1500
= 1820 m²
Cost of 1m² cementing = Rs. 30
Cost of 1820m² cementing = 1820 × 30
= Rs. 54600
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