Question

a swimming pool is 50 m in length, 30 m in breath and 2.5 m in depth. find the cost of cementing it's floor and walls at the rate of ₹27 per square meter

Answer 1

Area of floor = 50 * 30

                      = 1500.

Area of 4 walls = Perimeter * height

                          = 2*2.5(50+30)

                         = 400

Total surface area of swimming pool = 400 + 1500 

                                                               = 1900.

Cost of cementing its floor = 1900 * 27

                                              = 51300.

Answer 2

Answer:

Step-by-step explanation:

Area of floor = 50×30

= 1500

Area of four wall is = 2×(50+30)×2.5

: is = 160×2.5

= 400

Total area without top = 400 + 1500 = 1900

Cost / m sq. = 27

= 27×1900

= 51300