A swimming pool is 20 m long and 15 m wide and 3m deep.what will be the cost of repairing the floor and wall of the pool at the rate of 25 per square metre ? (a.17,250 b)15,720 c)12750
d.non of these
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Length (l)=20m(l)=20m
Breadth (b)=15m(b)=15m
Height (h)=3m(h)=3m
Area of Floor =lb=20×15=300m2=lb=20×15=300m2
Area of Walls =2(l+b)h=2(20+15)3=6×35=210m2=2(l+b)h=2(20+15)3=6×35=210m2
Total Area =300+210=510\m2=300+210=510\m2
Cost of repairing =510×25=12750
I hope it is clear for you.
Please mark my answer as the brainliest.
Breadth (b)=15m(b)=15m
Height (h)=3m(h)=3m
Area of Floor =lb=20×15=300m2=lb=20×15=300m2
Area of Walls =2(l+b)h=2(20+15)3=6×35=210m2=2(l+b)h=2(20+15)3=6×35=210m2
Total Area =300+210=510\m2=300+210=510\m2
Cost of repairing =510×25=12750
I hope it is clear for you.
Please mark my answer as the brainliest.
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