document.write( "Question 316430: there are 5 men working for 24 hours for 5 days to complete a brick wall. how many days can one man complete the same job if he only works for 8 hours a day?\r
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document.write( "my answer was 75 but i was told that it was wrong. can you help? thanks! \n" );
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Algebra.Com's Answer #226346 by scott8148(6628) You can put this solution on YOUR website! one man will take five times as many days as five men, so twenty-five 24 hour days\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if the one man only works 8 hrs per day, then it takes seventy-five 8 hr days\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I don't see what's wrong with your answer\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "another approach ___ (5 men)(24 hr / day)(5 days) = 600 man-hrs\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(600 man-hrs) / (1 man) / (8 hrs / day) = 75 days \n" ); document.write( " |