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GMAT Diagnostic Test Question 26

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Re: GMAT Diagnostic Test Question 27 [#permalink] New post 16 Sep 2013, 23:48
Expert's post
obs23 wrote:
prateekbhatt wrote:
dzyubam wrote:
Explanation:
Rating:

Official Answer: E

This is a hard equation to come up with during the test. The price of eggs was $12. Let E denote the number of eggs and P denote the price.

(E+2)\times(P-\frac{1}{12})=12

From this equation we get that E = 16.

Answer: E+2=16+2=18.


This equation is much more easier than the rest. But definately a 750 level ques.


Honestly, I do not understand (P-\frac{1}{12})...

Secondly, how do you solve from (E+2)\times(P-\frac{1}{12})=12 -->E = 16 - with this "shortcut" it is pretty much useless. Please explain to me how it could be solved, with two variables...Thanks.


Please refer to official solution: gmat-diagnostic-test-question-79356-40.html#p1257091
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Re: GMAT Diagnostic Test Question 26 [#permalink] New post 10 Mar 2014, 13:48
Can anyone refer me to similar problems so I can practice this type of problem? Thanks.
Re: GMAT Diagnostic Test Question 26   [#permalink] 10 Mar 2014, 13:48
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