Math, asked by anuj4265, 10 months ago

find the cost of painting and open underground tank of size 3 X 2 mX 1.5 m at rupees 50 M per metre square

Answers

Answered by wwwayushthakur123
6

Answer:

Given that 


The length of the tank = 3m.


The Breadth of the tank = 2m.


The height of the tank = 1.5m



We know that Area of the surface = 2(bh + lh) + lb


                                                         = 2(2 * 1.5 + 3 * 1.5) + 3 * 2


                                                         = 2(3 + 4.5) + 6


                                                         = 2(7.5) + 6


                                                        = 21.




Total area of painting = 21m^2.


Given cost of painting = 20 per m^2


Total cost of painting = 20 * 21


                                   = 420.




Therefore the total cost of painting = 420 rupees.



Hope this helps!


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