document.write( "Question 1115560: A painter can paint a building in 15 days and a co worker can do the same job in 10 days. If the first painter starts and 3 days later the co worker Joins in to help finish the job, how many does it take to paint the building? \n" ); document.write( "
Algebra.Com's Answer #730394 by josgarithmetic(39620)\"\" \"About 
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Rate of a painter, \"1%2F15\".
\n" ); document.write( "Rate of co-worker, \"1%2F10\".\r
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\n" ); document.write( "\n" ); document.write( "Painting the building is 1 job.\r
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\n" ); document.write( "\n" ); document.write( "\"%281%2F15%29%2A3%2B%281%2F15%2B1%2F10%29%2Ax=1\"
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\n" ); document.write( "\n" ); document.write( "\"1%2F5%2B%282%2F30%2B3%2F30%29x=1\"\r
\n" ); document.write( "\n" ); document.write( "\"1%2F5%2B%285%2F30%29x=1\"\r
\n" ); document.write( "\n" ); document.write( "\"1%2F5%2B%281%2F6%29x=1\", LCD is 30.\r
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\n" ); document.write( "\n" ); document.write( "\"30%281%2F5%2Bx%2F6%29=30\"\r
\n" ); document.write( "\n" ); document.write( "\"6%2B5x=30\"\r
\n" ); document.write( "\n" ); document.write( "\"5x=24\"\r
\n" ); document.write( "\n" ); document.write( "\"x=24%2F5\"\r
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\n" ); document.write( "\n" ); document.write( "If counting nearest whole days then 5 days; total of 8 days.
\n" ); document.write( "If counting fractions of any day, then \"4%264%2F5\"; total of \"7%264%2F5\".
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