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# GMATPrep Integers

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Senior Manager
Joined: 20 Feb 2008
Posts: 292
Location: Bangalore, India
Schools: R1:Cornell, Yale, NYU. R2: Haas, MIT, Ross

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03 Nov 2008, 21:28
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

I would appreciate your help in solving this question.
Thank you

The number 75 can be written as the sum of the squares of three different positive integers. What is the sum of these integers.

A. 17
B. 15
C. 15
D. 14
E. 13
Senior Manager
Joined: 04 Aug 2008
Posts: 369

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03 Nov 2008, 21:41
Well start by makin a small number chart to help u match the 75

1 1
2 4
3 9
4 16
5 25
6 36
7 49

Now u need something to match 75 so after several tries u can catch that 49+1+25 makes it

therefore 7+1+5 is a solution
13
E
_________________

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Manager
Joined: 23 Aug 2008
Posts: 63

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03 Nov 2008, 21:53
Agree with spiridon, and with the same method - I think that's the fastest way to do it, especially when you see the answer choices are all <20, then there can't be so many options to choose from
Senior Manager
Joined: 20 Feb 2008
Posts: 292
Location: Bangalore, India
Schools: R1:Cornell, Yale, NYU. R2: Haas, MIT, Ross

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05 Nov 2008, 21:13
Thank You!!
Re: GMATPrep Integers   [#permalink] 05 Nov 2008, 21:13
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# GMATPrep Integers

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