document.write( "Question 889300: The contractor's costs for building a small block of flats are in the ratio of 17:7:1 for labour, materials and overheads. The contractor charges his client $150,000 after making a profit of 20%. Find the original cost of the labour involved. \n" ); document.write( "
Algebra.Com's Answer #538058 by richwmiller(17219)\"\" \"About 
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1.2*(25x)=150000
\n" ); document.write( "x=5000 for overhead
\n" ); document.write( "17*x=$85000 for labour
\n" ); document.write( "7*x=$35000 for materials
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