document.write( "Question 1109172: How do I plug this problem into My calculator so I can solve?\r
\n" ); document.write( "\n" ); document.write( "Jane wants to buy a photocopier. The salesman has the following information on 3 models. If all 3 are used, a specific job can be done in 50 minutes. If copier A operates for 20 minutes and copier B for 50 minutes, one-half the job is finished. If copier B operates for 30 minutes and copier C for 80 minutes, three-fifths of the job is done. Which is the fastest copier, and how long does it take for this copier to finish the whole job?
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Algebra.Com's Answer #724214 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "This problem is exactly Problem 7 of the lesson\r
\n" ); document.write( "\n" ); document.write( "    - Joint-work problems for 3 participants\r
\n" ); document.write( "\n" ); document.write( "in this site. See the solution there.\r
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\n" ); document.write( "\n" ); document.write( "The request regarding calculators seems to be strange.\r
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\n" ); document.write( "\n" ); document.write( "The problem is/was designed for solution through algebra and logical reasoning and does no assume using calculators.\r
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