document.write( "Question 1060806: An Inlet pipe an oil tank in 10 days and a 2nd Inlet pipe can fill the same tank in 12 days. If both pipes are used how long will it take to fill the tank?
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Algebra.Com's Answer #675648 by josgarithmetic(39618)\"\" \"About 
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\"1%2F10%2B1%2F12\"\r
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\n" ); document.write( "\n" ); document.write( "Find reciprocal, or \"1%2F%281%2F10%2B1%2F12%29\".
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