document.write( "Question 256890: Please help! I need to know the basic forumla to work out problems such as this:\r
\n" ); document.write( "\n" ); document.write( "If it takes 6 men 9 hours to load a lorry, how long does it take 4 men?\r
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Algebra.Com's Answer #188957 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
work can be measured in manhours (one man working for one hour)\r
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\n" ); document.write( "\n" ); document.write( "it takes 54 manhours (6 * 9) to load the lorry\r
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\n" ); document.write( "\n" ); document.write( "if 4 men did it, it would take 13.5 hours (54 / 4)
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