document.write( "Question 869847: A 10% chlorine mixture is to be mixed to 25% of chlorine mixture to obtain 30 gallon of 20 % how many gallons of each can be used ? \n" ); document.write( "
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A 10% chlorine mixture is to be mixed to 25% of chlorine mixture to obtain 30 gallon of 20 % how many gallons of each can be used ?
\n" ); document.write( "Answer
\n" ); document.write( "let 10% chlorine mixture is X liters
\n" ); document.write( "let 25% chlorine mixture is y liters
\n" ); document.write( "as per given conditions
\n" ); document.write( "0.1 X + 0.25 Y = 6 (1)
\n" ); document.write( "X + Y =30 (2) by multiplying (2) by 0.1
\n" ); document.write( "0.1 X + 0.25 Y = 6 (3)
\n" ); document.write( "0.1 x + 0.1 y = 3 (4)
\n" ); document.write( "by subtracting
\n" ); document.write( "0.15 y = 3
\n" ); document.write( "y =3/0.15 =300/15 =20 gallon
\n" ); document.write( " X + Y = 30
\n" ); document.write( "X + 20 = 30
\n" ); document.write( "X =10 gallon
\n" ); document.write( "Answer 10% chlorine mixture 10 gallon
\n" ); document.write( "25% chlorine mixture should be 20 gallon\r
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