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A brand of paint costs Tk. 14 per liter and 1 liter of paint will cover an area of 150 square feet. what is the minimum cost of paint needed to cover the 4 walls of a rectangular room that ix 12 feet wide, 16 feet long and 8 feet high?

A brand of paint costs Tk. 14 per liter and 1 liter of paint will cover an area of 150 square feet. what is the minimum cost of paint needed to cover the 4 walls of a rectangular room that ix 12 feet wide, 16 feet long and 8 feet high? Correct Answer Tk. 42

Total surface area of the 4 walls = 2(length x height + width x height) = 2(16 x 8 + 12 x 8) = 448 ft2 Total paint required = 448/150 ≈ 2.99 liter Total cost of paint = 2.99 x 14 ≈ 42 TK

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