The cost of painting an open underground tank of 3m long, 2m wide and 1.5 m high at Rs 20 per m^2 is ______
I want it with steps, plz^100000
I want it with steps, plz^100000
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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!