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Triangle in XP plane

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by sugmomo » Wed Jun 16, 2010 4:45 am
Hi.. can u please give a detailed explanation for the below prob...

Right triangle PQR is to be constructed in the xy-plane so that the right angle is at P and PR is parallel to the x-axis. The x and y coordinates of P, Q and R are to be integers that satisfy the inequalities -4 <= x <= 5 and 6 <= y <= 16. How many different triangles with these properties could be constructed?

(A) 110
(B) 1,100
(C) 9,900
(D) 10,000
(E) 12,100
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by kvcpk » Wed Jun 16, 2010 6:51 am
Please check on this link

https://www.beatthegmat.com/triangle-in- ... 59564.html
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by Rich@VeritasPrep » Wed Jun 16, 2010 6:55 am
kvcpk: Your explanation is right on!

And FYI, not only could this question be on the GMAT...but it was! This question is a retired question that now appears in the Official Guide.
Rich Zwelling
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by kvcpk » Wed Jun 16, 2010 6:57 am
raz1024 wrote:kvcpk: Your explanation is right on!

And FYI, not only could this question be on the GMAT...but it was! This question is a retired question that now appears in the Official Guide.
Cant believe that.. can it be done in 2 mins? for first 1 min I had no clue how to start.
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by Rich@VeritasPrep » Wed Jun 16, 2010 7:07 am
Remember, the GMAT is an adaptive test, which means that it tailors itself to your level. Although it's not 100 percent correlative, in general, the better you do, the more difficult the questions get. So if you get this question, that likely means you're doing very well.

That said, you don't have to get every question correct to get the score you want. If you find yourself spending an inordinate amount of time on a question, it might be time to move on. No one question is so important that you should spend 4 to 5 minutes on it. This question is SUPPOSED to be extremely difficult. And because it's so difficult, missing it won't likely impact your score to a huge degree.
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by kvcpk » Wed Jun 16, 2010 7:12 am
Thanks for the info Raz!!
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