document.write( "Question 507764: It will take 24 men working 9 hours a day each to build a house in 45 days. Given that all men work at the same rate,\r
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document.write( "a. How nay days will 18 men take to build the same house if they work 8 hours a day ?\r
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document.write( "b. how many hours per day must 20 men work if the house is to be completed in 48 days ? \n" );
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Algebra.Com's Answer #340716 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! It will take 24 men working 9 hours a day each to build a house in 45 days. Given that all men work at the same rate, \n" ); document.write( "a. How many days will 18 men take to build the same house if they work 8 hours a day ? \n" ); document.write( "b. how many hours per day must 20 men work if the house is to be completed in 48 days ? \n" ); document.write( "** \n" ); document.write( "Man-hours to build the house=24*9*45=9720 \n" ); document.write( "a. How many days will 18 men take to build the same house if they work 8 hours a day ? \n" ); document.write( "let x=days to build the same house \n" ); document.write( "18*8*x=9720 \n" ); document.write( "x=9720/(18*8)=67.5 days \n" ); document.write( ".. \n" ); document.write( "b. how many hours per day must 20 men work if the house is to be completed in 48 days ? \n" ); document.write( "let u = hours per day 20 men must work \n" ); document.write( "20*u*48=9720 \n" ); document.write( "u=9720/(20*48)=10.125 hrs/day \n" ); document.write( " |