The paint in the container os sufficient to paint an area of 9.375m^2. How many bricks of dimensions 22.5cm X 10cm X 7.5cm can be painted out of this container

Q) The paint in the container is sufficient to paint an area of 9.375m^2. How many bricks of dimensions 22.5cm X 10cm X 7.5cm can be painted out of this container?

Answer:

Given length l = 22.5 cm; b = 10 cm and h =  7.5 cm

The total surface area of a cuboid brick = 2(lh + bh + lb)

The total surface area of a cuboid brick = 2((22.5)(7.5) + (10)(7.5) + (22.5)(10))

= [  168.75 + 75 + 225] = 468.75 sq cm

Area to painted by one tin = 9.375 m^2 = 9.375 x 100 x 100 cm^2

                                                 = 93750 cm^2

Number of bricks that can be painted = 93750/468.75  = 200

Number of bricks that can be painted = 200 Answer

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Updated on: 10-Oct-2022

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