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In Episode 7 of our GMAT Ninja CR series, we are rounding up the oddballs, the misfits, and the format-benders: EXCEPT, Fill-In-The-Blanks, and other unusual Critical Reasoning question types. When you see a question that ends with a literal blank line
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For most test takers, Data Insights is the most challenging section on the GMAT, with test takers scoring several points lower on average on DI than on Quant or Verbal and completing the section with less time to spare. - Jun 10
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13 Dec 2014, 16:12
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Can someone please help with this questions. Solution and explanation. I find mixture problems confusing! If someone knows an easy way to do these, please share.
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13 Dec 2014, 16:31
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omerfazal
This problem though it seems to b complicated it is nt actually
Just take the average of it
for example the average of all the concentrations of water Proportional to their volumes is equal to the net concentration.
A : m ounces of 40 % concentration (W)
B : 2m ounces of 70% concentration(W)
C : n ounces of 30% concentration (W)
Net concentration = 54 %
Which means
54 = [m*40 + 2m*70 +n*30]/m+2m + n
From that u get m/n = 4/3
So the only combination that satisfies is m = 480 and n = 360
Correct me incase I made some mistake !
