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The paint in a certain container is sufficient to paint an area of 9.375 square how many bricks measuring 22.5 cm into 10 cm into 7.5 CM can be painted out of the paint in a container |
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Answer» area: SURFACE area of a solid object is a measure of the total area that the surface of the object occupies and it is always measured in SQUARE unit. Hence surface area is also known as total surface area TSA. ======================================================== Given: Dimension of BRICK = l=22.5 cm, b=10 cm, c=7.5 cm Total surface area of a container= 9.375 m² Total surface area of a brick = 2(lb + bh + lh) = 2(22.5×10 + 10×7.5 + 22.5×7.5) = 2(225 + 75 + 168.75) = 2×468.75 = 937.5 cm² = 937.5/100×100 m² Number of bricks that painted out of this container= total area painted by containers PAINT / total surface area of a brick =9.375/ (937.5/100×100) =( 9.375×100×100) / 937.5 = 937500/ 9375= 100 Hence,100 bricks can be painted out. ========================================================= Hope this will help you... |
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