document.write( "Question 945957: If 8 men can plough a field in 9 hours, how long would it take 18 men at the same rate?\r
\n" ); document.write( "\n" ); document.write( "a. 20 1/4 hours
\n" ); document.write( "b. 19 hours
\n" ); document.write( "c. 10 hours
\n" ); document.write( "d. 4hours
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Algebra.Com's Answer #577048 by josmiceli(19441)\"\" \"About 
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8 men plough 1 field in 9 hrs
\n" ); document.write( "1/8 that number of men will take 8
\n" ); document.write( "times as long to plough 1 field
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\n" ); document.write( "1 man ploughs 1 field in 72 hrs
\n" ); document.write( "18 times as many men will take 1/18
\n" ); document.write( "of that time to plough 1 field
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\n" ); document.write( "18 men plough 1 field in 72/18 = 4 hrs
\n" ); document.write( "The answer is (d)\r
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