document.write( "Question 326722: How much quantity of 15% of acid solution must be added to 8L of 30% solution of the same acid to obtain 25% solution for duty cleaning? \n" ); document.write( "
Algebra.Com's Answer #233930 by mananth(16946)\"\" \"About 
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15% of acid solution ---let it be x liters
\n" ); document.write( "30% solution --------8 liters
\n" ); document.write( "mixture 25% solution (8+x) liters
\n" ); document.write( "..
\n" ); document.write( "0.15x+0.08*30=0.25(8+x)
\n" ); document.write( "0.15x+2.4 =2+0.25x
\n" ); document.write( "add -2.4
\n" ); document.write( "0.15x+2.4-2.4 = 2-2.4 +0.25x
\n" ); document.write( "0.15x = 0.4+0.25x
\n" ); document.write( "0.1x= 0.4
\n" ); document.write( "x= 4 liters of 15% solution
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