Question

Hameed has built a cubical water tank with lid for his house, with each other 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 for his tiles, if the cost of tiles is Rs 360 per dozen.

Answer 1

The water tank is cubical.

So let,

Side of the cube

Total surface area covered by tiles

Side of each square tile

Area of each square tile

Number of tiles required

Cost of each tile

We are asked to find the total cost of the tiles

We have,

.So,

We have,

So;

Now,

The cost of tiles is per dozen.

Hence,

Total cost for the tiles

Hameed would spend for the tiles.