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" WHAT QUANTITY OF A 60% ACID SOLUTION SHOULD BE MIXED WITH

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" WHAT QUANTITY OF A 60% ACID SOLUTION SHOULD BE MIXED WITH [#permalink] New post 24 Sep 2011, 12:13
" WHAT QUANTITY OF A 60% ACID SOLUTION SHOULD BE MIXED WITH 120 OZ. OF 30% ACID SOLUTION TO GET A 50% ACID SOLUTION?
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Re: " WHAT QUANTITY OF A 60% ACID SOLUTION SHOULD BE MIXED WITH [#permalink] New post 25 Sep 2011, 03:11
KaranSingh wrote:
" WHAT QUANTITY OF A 60% ACID SOLUTION SHOULD BE MIXED WITH 120 OZ. OF 30% ACID SOLUTION TO GET A 50% ACID SOLUTION?


Say X= quantity of 60% acid solution

60% of X + 120*30% = 50%(X+120)
6X + 360 = 5X + 600
X = 240 (answer)
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Re: " WHAT QUANTITY OF A 60% ACID SOLUTION SHOULD BE MIXED WITH   [#permalink] 25 Sep 2011, 03:11
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" WHAT QUANTITY OF A 60% ACID SOLUTION SHOULD BE MIXED WITH

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