What is: 14387100 / (14387100^2 - (14387105 * 14387095))? : Quant Question Archive [LOCKED]
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# What is: 14387100 / (14387100^2 - (14387105 * 14387095))?

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What is: 14387100 / (14387100^2 - (14387105 * 14387095))? [#permalink]

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16 Jan 2004, 01:08
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

What is:

14387100 / (14387100^2 - (14387105 * 14387095))?

(remember you have only 2 minutes...)

A) 143871
B) 287742
C) 575484
D) 1438710
E) 2877420

[/code]
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AkamaiBrah
Former Senior Instructor, Manhattan GMAT and VeritasPrep
Vice President, Midtown NYC Investment Bank, Structured Finance IT
MFE, Haas School of Business, UC Berkeley, Class of 2005
MBA, Anderson School of Management, UCLA, Class of 1993

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16 Jan 2004, 01:23
14387100 / (14387100^2 - (14387105 * 14387095))

14387100 / (14387100^2 - (14387100+5)(143870100-5))

14387100 / (14387100^2 - (14387100^2 - 25))?

14387100 / 25

first number is 5 so C.

Took me a little longer than 2mins
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16 Jan 2004, 01:36
Nice Calnhob
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Best Regards,

Paul

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16 Jan 2004, 04:30
Got C but took 10 secs. here it is let 14387100 be a then 14387105 will be (a+5) and 14381095 will be (a-5) so by substituting we will get a/a^2 -{ (a+5)*(a-5)} = a/25 = 14387100/25 = answer C
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16 Jan 2004, 04:39
16 Jan 2004, 04:39
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