Question

Manish wants to make a water tank with a metal sheet. The tank will be open from the top. If the length.
breath and height of this tank is 2 m. 1.5 m. and 80 cm. respectively, the area of the metal sheet needed to
make this tank will be-
9.6 m
07.5 m
8.6 m
9.2 m​

Answer 1

ANSWER

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

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