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dominate11
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 Posted: Wed Feb 28, 2007 8:31 am Post subject: GMATPrep - Practice Test #1 - DS - Please Help |
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Any insight would be much appreciated...
7. In the triangle ABC above, what is the length of side BC? 1) Line segment AD has length 6 2) x=36 ( I was not sure how to include the example of the triangle)
9. On the sight seeing tour, the ratio of the number of women to the number of children was 5 to 2. What was the number of men on the sight seeing tour? 1) On the sight seeing tour, the ratio of the number of children to the number of men was 5 to 11. 2) The number of women on the sight seeing tour was less than 30.
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gabriel
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| Posted: Sat Mar 03, 2007 9:54 am Post subject: Re: GMATPrep - Practice Test #1 - DS - Please Help |
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| dominate11 wrote: | Any insight would be much appreciated...
7. In the triangle ABC above, what is the length of side BC? 1) Line segment AD has length 6 2) x=36 ( I was not sure how to include the example of the triangle)
9. On the sight seeing tour, the ratio of the number of women to the number of children was 5 to 2. What was the number of men on the sight seeing tour? 1) On the sight seeing tour, the ratio of the number of children to the number of men was 5 to 11. 2) The number of women on the sight seeing tour was less than 30. |
for the first one i dont see a diagram.....
for the second one .... statement 1 along with the information in the question will give u the ratio of men:children:women... which is 22:10:25.... so this statement alone is not sufficient.... statement again does not give u any worthwhile information so this alone is not sufficient either... but take both the statement together and the only possible value of men that wuld satisfy both the given condition is 22 ... so the answer is C
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Stacey Koprince
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| Posted: Sun Mar 11, 2007 11:52 pm Post subject: |
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Hi, dominate - if you don't know how to post images, you can also just describe the triangle in text.
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Mark Dabral
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| Posted: Mon Mar 12, 2007 11:01 am Post subject: Here is the image associated with the problem statement |
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Here is the problem from GMATPrep. This problem is also in OG11, and I believe there is a typo in the book. The problem as stated here is correct.
Cheers,
Mark
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snapplesf
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| Posted: Tue Mar 13, 2007 11:54 pm Post subject: triangle ABC |
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Hi dominate11 ,
Assuming you figured out the triangle problem. if not,
if you work out the angles, you see that angles BAD=ABD
hence sides AD=BD=BC - hence A is sufficient.
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