Hameed has built a cubical water tank with lid for his house, with each outer edge 1.5 m long. He gets the outer surface of the tank excluding the base, covered with square tiles of side 25 cm. Find how much he would spend on the tiles if the cost of the tiles is Rs.360 per dozen.
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Answer:
Step-by-step explanation:
The length of the each side of water tank =1.5m=150cm
As it is given that base is not covered with tiles so, five sides of the tank are
covered with tiles.
Therefore,
Surface area of water tank =5a
2
=5(150)
2
=112500 cm
2
Side of tile =25 cm
Area of tile =25
2
=625 cm
2
Number of tiles to cover five sides of the tank =
625
112500
=180
Now,
Cost of one dozen tiles =Rs.360
Hence, total cost of 180=
12
360
×180=Rs.5400
this is ur correct answer...........