Question

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 (see in the figure below). 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 1

Step-by-step explanation:

Given :

Rate of tiles = 360 per dozen

Side Of Water tank = 1.5 m long

Side of Tiles = 25 cm

Find :

Cost of tiles

Solution :

The Length Of the Cubical water tank = 1.5 m

The area Of one face cubical of the water tank calculated

a1 = ( 1.5m) ^2

a1 = 2.25 m^2

The Area Of the five face of the Cubical water tank is calculated

a2 = 5 × 2.25

a2 = 11.25 m^2

The Side of a Square tiles

S = 0.25 × 0.25

S = 0.0625 m^2

Number of tiles = Area Of five face Of Cubical water tank ÷ the area of the square tile

Number of tile = 11.25/0.0625 ( Cancel 11.25 to 0.0625 )

Number of tiles = 180

Hameed would Spend for the tile if the cost of tiles Rs 360 per dozen

E = 180/12 × 360

E = 180 × 30

E = rs 5400

The Spend tiles is 360 per dozen is Rs 5400

Answer 2

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