document.write( "Question 979565: A,B can do a piece of work 6,8 hours respectively.If they work for a day alternatively.Suppose A beginning the work,in how many days work will be completed?
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document.write( "i think answer is 6 ³/2.
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document.write( "please explain this question. \n" );
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Algebra.Com's Answer #600848 by josgarithmetic(39618)![]() ![]() ![]() You can put this solution on YOUR website! Your description might be better understood as, \"A and B working independently and not at the same time on the same job, take 6 and 8 hours respectively\". They can still work \"ALTERNATELY\" on a task.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "WORKER________RATE, job/hours \n" ); document.write( "A_____________1/6 \n" ); document.write( "B_____________1/8\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now, the rest of the description gives A and B working in alternation. Each is working on the job separately, not simultaneously. We could try making calculation at a very low level.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(1/6)*1+(1/8)*1+(1/6)*1+(1/8)*1+....=1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Try maybe using a variable for the number of day that EACH may possibly work alone, although the true result could be non-whole. \n" ); document.write( "Say like, A and B each works x days. \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Try to now go back to the lowest day to day level. \n" ); document.write( "First let A work for 3 days and B work for 3 days, knowing that A and B never work on the same day.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "- \n" ); document.write( "This way, three days for A and three days for B, done in alternation, \n" ); document.write( "completes only \n" ); document.write( "- \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "This then is slightly MORE THAN 1 JOB. \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let me just summarize as much as to say, A will work for 4 days, and then B will have worked 3 days, plus most of the last day but not all of it. \n" ); document.write( " |