document.write( "Question 921645: if 15 men can do a work in 210 days . they started working but at the end 10 days
\n" ); document.write( " 15 additional men were added then in how many days they all will complete the work
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Algebra.Com's Answer #559132 by josgarithmetic(39620)\"\" \"About 
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The description for doing the 1 job indicates that the one-man work rate is \"1%2F%2815%2A210%29\" job per day. The added 15 more men mean that the rate simply doubles. \r
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\n" ); document.write( "\n" ); document.write( "Let t be the additional days that the 30 men work together.\r
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\n" ); document.write( "\n" ); document.write( "\"15%281%2F%2815%2A210%29%29%2A10%2B30%281%2F%2815%2A210%29%29t=1\"\r
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\n" ); document.write( "\n" ); document.write( "\"%281%2F210%29%2A10%2B%282%2F210%29t=1\"\r
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\n" ); document.write( "\n" ); document.write( "\"%2810%2B2t%29%2F210=1\"\r
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\n" ); document.write( "\n" ); document.write( "\"10%2B2t=210\"\r
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\n" ); document.write( "\n" ); document.write( "\"2t=200\"\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28t=100%29\"
\n" ); document.write( "100 additional days for the 15 EXTRA MEN (meaning 30 men total) to FINISH after the first ten days.
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