Comments on: Math word problem http://www.gmatpill.com/practice-questions-explanations-gmat-prep/math-word-problem/ Ace Your GMAT In Under 1 Month - Last Minute GMAT Prep Mon, 06 Sep 2010 03:09:53 -0400 http://wordpress.org/?v=2.8.4 hourly 1 By: Marc http://www.gmatpill.com/practice-questions-explanations-gmat-prep/math-word-problem/comment-page-1/#comment-228 Marc Wed, 03 Mar 2010 02:41:08 +0000 http://www.gmatpill.com/?p=2143#comment-228 Oh and so f3 = 4 + 2 = 6. Oh and so f3 = 4 + 2 = 6.

]]> By: Marc http://www.gmatpill.com/practice-questions-explanations-gmat-prep/math-word-problem/comment-page-1/#comment-227 Marc Wed, 03 Mar 2010 02:40:09 +0000 http://www.gmatpill.com/?p=2143#comment-227 The fastest way I think of it is this: Friends 1 and 2 are the same, friend 3 has 2 more. Therefore, f3 - 2 = f1 = f2 Therefore, 14 - 2 = 12/3 = 4. Pretty much like ozzie. But an answer should be reached within a few seconds if done in your head :) The fastest way I think of it is this:

Friends 1 and 2 are the same, friend 3 has 2 more.

Therefore, f3 – 2 = f1 = f2

Therefore, 14 – 2 = 12/3 = 4.

Pretty much like ozzie. But an answer should be reached within a few seconds if done in your head :)

]]> By: Ozzie http://www.gmatpill.com/practice-questions-explanations-gmat-prep/math-word-problem/comment-page-1/#comment-224 Ozzie Sun, 28 Feb 2010 15:33:20 +0000 http://www.gmatpill.com/?p=2143#comment-224 It's too long, you won't have that much time during the test so it's easier if the thinking's like this: f1 = f2 and f3 = f1 + 2 so f1 + f2 + f3 = 14 is equal to f1+f1+f1+2=14 which can be simplified to 3f1=12; f1=4 Since f3 = f1+2 then f3 = 4+2 = 6 It’s too long, you won’t have that much time during the test so it’s easier if the thinking’s like this:

f1 = f2 and f3 = f1 + 2
so
f1 + f2 + f3 = 14 is equal to f1+f1+f1+2=14
which can be simplified to 3f1=12; f1=4
Since f3 = f1+2 then f3 = 4+2 = 6

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