document.write( "Question 751392: Six builders worked 8 hours a day for 10 days to complete a job. If eight builders worked 6 hours a day for 3 days, the remaining work had to be completed by six builders in 8 days. How many hours did each builder have to work each day to complete the remaining of the job?
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Algebra.Com's Answer #457315 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Six builders worked 8 hours a day for 10 days to complete a job. \n" ); document.write( "Find the number of man-hours required to complete the job: \n" ); document.write( "6 * 8 * 10 = 480 man-hrs \n" ); document.write( ": \n" ); document.write( " If eight builders worked 6 hours a day for 3 days, the remaining work \n" ); document.write( " had to be completed by six builders in 8 days. \n" ); document.write( " How many hours did each builder have to work each day to complete the \n" ); document.write( " remaining of the job? \n" ); document.write( ": \n" ); document.write( "Find the number of man-hrs completed in the first 3 days \n" ); document.write( "8 * 6 * 3 = 144 man-hrs \n" ); document.write( "Find the number of man-hrs required to complete the job \n" ); document.write( "480 - 144 = 336 man-hrs \n" ); document.write( "let h = no. of hrs a day required by the 6 workers \n" ); document.write( "6 * h * 8 = 336 \n" ); document.write( "48h = 336 \n" ); document.write( "h = 336/48 \n" ); document.write( "h = 7 hrs a day \n" ); document.write( " |