document.write( "Question 987484: You want to paint the walls and ceiling of a room that measures 3mx4m and is 2.7m high . One liter tin of paint covers 8 square meters . How many tins of paint will you need ?
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Algebra.Com's Answer #608239 by Boreal(15235)\"\" \"About 
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4 walls
\n" ); document.write( "2 are 3*2.7=8.1 m^2*2=16.2 m^2
\n" ); document.write( "2 are 4*2.7=10.8 m^2*2=21.6 m^2
\n" ); document.write( "the ceiling is 3*4=12 m^2
\n" ); document.write( "The sum is 49.8 m^2
\n" ); document.write( "Six tins cover 48 m^2.
\n" ); document.write( "Seven tins are needed.
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