document.write( "Question 1181303: Carlo can type a manuscript for 10 hours. he started working then bobby joined him 2 hours later. they worked together for 4 hrs until carlo decided to stop and then bobby had to finish the manuscript alone. if bobby finished the remaining portion in 6 more hours, how long can he type the whole manuscript working alone? \n" ); document.write( "
Algebra.Com's Answer #853575 by MathTherapy(10719)\"\" \"About 
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document.write( "Carlo can type a manuscript for 10 hours. he started working then bobby joined him 2 hours later. they worked together for 4 hrs\r\n" );
document.write( "until carlo decided to stop and then bobby had to finish the manuscript alone. if bobby finished the remaining portion in 6 more\r\n" );
document.write( "hours, how long can he type the whole manuscript working alone?\r\n" );
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document.write( "Carlo can complete the job in 10 hours, or \"1%2F10\" of job in 1 hr\r\n" );
document.write( "Let time Bobby takes, to do entire job, by himself, be B\r\n" );
document.write( "Then, Bobby can complete \"1%2FB\" of job in 1 hr\r\n" );
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document.write( "Since Bobby started 2 hours after Carlo, then Carlo worked alone for 2 hours. So, fraction of job completed by Carlo,\r\n" );
document.write( "before Bobby joined him = \"2%281%2F10%29+=+2%2F10\"\r\n" );
document.write( "With both working together for 4 hrs, fraction of job both completed, working together = \"4%281%2F10+%2B+1%2FB%29\"\r\n" );
document.write( "Finally, given that Bobby completed the remaining portion in 6 hours, fraction of entire job done by Bobby, alone, = \"6%281%2FB%29\". \r\n" );
document.write( "We then get the following ENTIRE JOB-equation: \"2%2F10+%2B+4%281%2F10+%2B+1%2FB%29+%2B+6%281%2FB%29+=+1\"\r\n" );
document.write( "                                                       \"2%2F10+%2B+4%2F10+%2B+4%2FB+%2B+6%2FB+=+1\"\r\n" );
document.write( "                                                            \"6%2F10+%2B+10%2FB+=+1\"\r\n" );
document.write( "                                                          6B + 100 = 10B ----- Multiplying by LCD, 10B\r\n" );
document.write( "                                                               100 = 10B - 6B\r\n" );
document.write( "                                                               100 = 4B\r\n" );
document.write( "Time taken by Bobby to do the ENTIRE job, working ALONE, or 
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