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Offical GMAT Review 2nd Edition #162
I'm not seeing a solution to this problem on the forum and the book's solution is hard to follow. Any ideas?
Here is the question without the picture:
In the figure above, point O is the center of the circle and OC=AC=AB. What is the value of x?
- by bookjive
Wed Feb 22, 2012 11:46 am- Forum: Problem Solving
- Topic: Offical GMAT Review 2nd Edition #162
- Replies: 7
- Views: 7847
What is the value of b + c ? 12 Edition Number 83 DS
What is the value of b + c ? (1) ab + cd + ac + bd = 6 (2) a + d = 4 (1) Th e equation ab + cd + ac + bd = 6 can be simplified to isolate b + c by regrouping and then factoring as follows: (ab + bd ) + (ac + cd ) = 6 b(a + d ) + c(a + d ) = 6 (a + d) (b + c ) = 6 I understand until the last step. Ho...
- by bookjive
Sat Feb 11, 2012 10:10 am- Forum: Data Sufficiency
- Topic: What is the value of b + c ? 12 Edition Number 83 DS
- Replies: 3
- Views: 2125
- by bookjive
Thu Jan 05, 2012 8:40 pm- Forum: Problem Solving
- Topic: What does x =? Helpp!
- Replies: 7
- Views: 2886