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GMAT Prep : Formulating Equation

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Senior | Next Rank: 100 Posts
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GMAT Score:710
by Skywalker » Tue Oct 05, 2010 2:08 pm
Hi,

How come the ans is [spoiler]OA = Option 3[/spoiler] ? Pls let me know...


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by uwhusky » Tue Oct 05, 2010 3:32 pm
How about you put in the effort of typing up the question if you want a note worthy response.
Yep.
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by nisha.menon294 » Tue Oct 05, 2010 6:35 pm
I just plugged in values for this . I assumed that I = 100.
so as per the question , (2\100)+ (100+1)\2 => 2+101\2 = 105\2
If u plug in I as 100 in the answer choices , you will get option c as the answer and the rest are eliminated .
Hope that helps.
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by Skywalker » Tue Oct 05, 2010 9:31 pm
Nisha,

Thanks....I revisited the question stem ( with a fresh pair of eyes & brain :) ) , plugged in values for I and got the answer. Guess, I need calm down a bit & think straight

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