Mr. Shah has built a cubical water tank with lid for his house, with each outer edge 1.5m long. He want the outer surface of the tank excluding the base, covered with square tiles of side 25 cm. Find how much he would spend for the tiles, if the cost of the tiles is Rs. 360 per dozen.
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Answer:
Given tank is in cuboldal shape so Total inner surface area of water tank including the base without top.
=2(l+b)×h+l×b
=2(180+120)×60+180×120
=36000+21600
=57600cm
2
Given Area of each time tile =10×8
=80cm
2
∴ Number of tiles required =
80
57600
=720
Given rate of tiles required us Rs.720 per dozen.
Total amount required for 720 tiles is =
12
480
×720
=Rs.28800
Step-by-step explanation:
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