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# QUESTION OF ALLIGATION ..

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Intern
Joined: 24 Sep 2011
Posts: 11

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24 Sep 2011, 12:43
plss help me for question of alligations ??

" 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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Joined: 31 Dec 1969

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Location: Russian Federation
GMAT 3: 740 Q40 V50
GMAT 4: 700 Q48 V38
GMAT 5: 710 Q45 V41
GMAT 6: 680 Q47 V36
GMAT 9: 740 Q49 V42
GMAT 11: 500 Q47 V33
GMAT 14: 760 Q49 V44
WE: Supply Chain Management (Energy and Utilities)
Re: QUESTION OF ALLIGATION .. [#permalink]

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24 Sep 2011, 13:03
Let x = quantity of acid.

0.6x + 0.3*120 = 0.5*(120+x)
0.6x + 36 = 60 + 0.5x
0.1x = 24
x = 240 oz

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Re: QUESTION OF ALLIGATION ..   [#permalink] 24 Sep 2011, 13:03
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# QUESTION OF ALLIGATION ..

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