MGMAT--SQUARE ROO OF X

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Source: — Problem Solving |

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by bblast » Thu Jan 06, 2011 3:09 am
Try plugging numbers

X= 2
Y= 4

(SQ.ROOT OF 2)^4=4

therefore X-Y = 2-4 = -2

IMO A

Post more of such questions, very gmat like, but dont post gmat prep questions :)
Cheers !!

Quant 47-Striving for 50
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My gmat journey :
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by prachich1987 » Thu Jan 06, 2011 3:15 am
I did the same way
But is there any traditional method?

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by bblast » Thu Jan 06, 2011 3:30 am
i dnt think so

such questions always are solved by plugging numbers.

I saw a couple of questions like these in my gmat prep 1 with similar non-methodical solutions.
Cheers !!

Quant 47-Striving for 50
Verbal 34-Striving for 40

My gmat journey :
https://www.beatthegmat.com/710-bblast-s ... 90735.html
My take on the GMAT RC :
https://www.beatthegmat.com/ways-to-bbla ... 90808.html
How to prepare before your MBA:
https://www.youtube.com/watch?v=upz46D7 ... TWBZF14TKW_