document.write( "Question 836425: Six men can build a 150 m wall in 10 hrs. How many men are needed to build a 200 m wall in 4 hrs? \n" ); document.write( "
Algebra.Com's Answer #514043 by richwmiller(17219)\"\" \"About 
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6*10=60 man hours to build 150 m
\n" ); document.write( "60/150=2/5 man hours per m
\n" ); document.write( "200*2/5=80 man hours
\n" ); document.write( "80/4 =20 men\r
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