document.write( "Question 66858This question is from textbook Advanced mathematics
\n" ); document.write( ": Ten workers could do the job in 12 days. If 8 workers worked for 5 days and then half of them quit, how long would it take for the rest to complete the job? \n" ); document.write( "

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Ten workers could do the job in 12 days.
\n" ); document.write( "This means the job requires 10*12 = 120 man/days to complete
\n" ); document.write( ":
\n" ); document.write( "If 8 workers worked for 5 days and then half of them quit, how long would it take for the rest to complete the job?
\n" ); document.write( ":
\n" ); document.write( "I understand this to mean how many more days will be required after half of them quit. Let x = number of more days required:
\n" ); document.write( ":
\n" ); document.write( "original group + half the group = 120 man/days
\n" ); document.write( "(8*5) + 4x = 120
\n" ); document.write( "40 + 4x = 120
\n" ); document.write( "4x = 120 - 40
\n" ); document.write( "4x = 80
\n" ); document.write( "x = 20 days to complete the job:
\n" ); document.write( ":
\n" ); document.write( "Check: (8*5) + (4*20) = 120 man/days
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