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salt must be added

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salt must be added

by sanju09 » Fri Apr 08, 2011 1:24 am
How many ounces of a solution that is 30 percent salt must be added to a 50-ounce solution that is 10 percent salt so that the resulting solution is 20 percent salt?
(A) 20
(B) 30
(C) 40
(D) 50
(E) 60
The mind is everything. What you think you become. -Lord Buddha



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by HSPA » Fri Apr 08, 2011 1:47 am
equal proportions
First take: 640 (50M, 27V) - RC needs 300% improvement
Second take: coming soon..
Regards,
HSPA.
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