Search found 6 matches
I'm confused by raama's statement and conclusion, he says it himself, "The probability of Mike or Rob winning the championship( That implies Ben loosing) is 1/4 + 1/3 = 7/12." That's what we're looking for. Mutually exclusive means that by default if Mike or Rob wins then Ben loses. So we ...
- by benjaminvw
Mon Mar 02, 2009 12:35 pm- Forum: Problem Solving
- Topic: Mike or Rob win but not Ben
- Replies: 12
- Views: 2911
"On the other hand expecting individual sacrifices on the part of nations will hamper their competitiveness in the international market."
Expecting sacrifices won't hamper anything, the sacrifices themselves will. Maybe I'm just nitpicking, but it jumped out at me.
- by benjaminvw
Tue Feb 24, 2009 5:50 pm- Forum: GMAT Essays (AWA)
- Topic: Analysis of Issue--Energy Conservation--Please review
- Replies: 12
- Views: 41471
Given that they're mutually exclusive I don't get why it isn't 1/3 + 1/4 = 7/12
That said, these probably questions are some of the hardest for me......
- by benjaminvw
Mon Feb 23, 2009 4:59 pm- Forum: Problem Solving
- Topic: Mike or Rob win but not Ben
- Replies: 12
- Views: 2911
thanks
Thanks for the response. I'm not sure I can say I have my head around it 100%, but I do believe you're right. So the lesson is that unless marked in the picture, assume nothing about how it's drawn and try drawing it different ways to test? Does anyone have any general advice/insight into how I coul...
- by benjaminvw
Mon Feb 23, 2009 9:21 am- Forum: Data Sufficiency
- Topic: Manhattan Question Bank
- Replies: 8
- Views: 2406
Can comeone please comment
Stmt 2 statement . I have a different approach. We know the area of the triangle. If we draw a perpendicular from B to AC at point D, We can find the height of the because we know the area of the triangle. (0.5) * BD* 13 = 30. BD = 60/13 The perpendicular divides the triangle in to 2 small triangle...
- by benjaminvw
Sun Feb 22, 2009 8:37 pm- Forum: Data Sufficiency
- Topic: Manhattan Question Bank
- Replies: 8
- Views: 2406
it 'should' be E
My answer was E as well, it does not state that the circle is in the same plane, it could just as easily cut through the plane of X and Y right at point X. I should say that unlike the first poster I don't know very advanced math and haven't done geometry since high school. Not a good question and i...
- by benjaminvw
Wed Feb 11, 2009 12:34 pm- Forum: Data Sufficiency
- Topic: three space question? OG (11ed) question incorrect.
- Replies: 6
- Views: 2682