document.write( "Question 1069136: if you need 100lbs of.gold and ore.is 25% pure gold how many lbs of.ore will you need
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Algebra.Com's Answer #684369 by Boreal(15235)\"\" \"About 
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If that is 25% pure gold than you need 400 pounds, for 100 is 1/4 th of 400 lbs.\r
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