Question

a swimming pool is 50 M and length 30 m in breath and 2.5 min depth find the cost of cementing with floor and walls at the rate of 27 per square metre

Answer 1

For a swimming pool
Length =50 m
Breadth = 30 m
Height = 2.5 m

We have,
Area to be cemented,
=Area of 4 walls + Area of base
=2h(l+b) + lb
=2 (2.5) (50+30)+ 50(30)
=400+1500
=1900m²

Cost of cementing 1m²=₹27
Cost of cementing 1900m²=₹1900×27
=₹51300