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1000PS Section 3 Qusetion 20
picture is attached.
20. If each side of ΔACD above has length 3 and if AB has length 1, what is the area of region BCDE?
(A) 9/4
(B) 7/4*sqrt(3)
(C) 9/4*sqrt(3)
(D) 7/2*sqrt(3)
(E) 6 +sqrt(3)
thanks!![/quote]
- by cindyqtran
Sat Sep 22, 2007 10:06 pm- Forum: Problem Solving
- Topic: 1000PS Section 3 Qusetion 20
- Replies: 2
- Views: 4958
1000PS Section 3 Qusetion 7
Just wanted to check if my logic is right, or I was just lucky. 7. A certain elevator has a safe weight limit of 2,000 pounds. What is the greatest possible number of people who can safely ride on the elevator at one time with the average (arithmetic mean) weight of half the riders being 180 pounds ...
- by cindyqtran
Sat Sep 22, 2007 6:52 pm- Forum: Problem Solving
- Topic: 1000PS Section 3 Qusetion 7
- Replies: 0
- Views: 1483
- by cindyqtran
Sat Sep 22, 2007 3:06 pm- Forum: Problem Solving
- Topic: 1000PS Section 1 Qusetion 18
- Replies: 3
- Views: 1605
1000PS Section 1 Qusetion 18
18. Last year Mrs. Long received $160 in dividends on her shares of Company X stock, all of which she had held for the entire year. If she had had 12 more shares of the stock last year, she would have received $15 more in total annual dividends. How many shares of the stock did she have last year? (...
- by cindyqtran
Thu Sep 20, 2007 11:09 pm- Forum: Problem Solving
- Topic: 1000PS Section 1 Qusetion 18
- Replies: 3
- Views: 1605
hey,
I have a question from your "praticeprob.pdf." can you explain how you got 1/9 for the first problem?
- by cindyqtran
Mon Aug 27, 2007 4:56 pm- Forum: GMAT Math
- Topic: probability, permutation and combination......
- Replies: 5
- Views: 24566
- by cindyqtran
Sun Aug 26, 2007 12:21 pm- Forum: GMAT Strategy
- Topic: Download my free GMAT Flashcards!
- Replies: 406
- Views: 724547