what is the source of this question?
Its a Princeton 2004 CD adaptive exam question. I was surprised to see such substandard question from princeton. Even though it says that "the diagram is not drawn to scale", there may be more than one correction we can apply (see attached picture), but only one of them was present as an answer choice.
OA given is as everyone said: (E). 370.
And Princeton's explanation is, "Use the rule of 180. If z = 45, then both b and c must be 180 - 45 = 135. That's 270 degrees right there. since x = 80, a must be equal to 180-80 = 100. Thus a+b+c = 370".
I was too confused, spent 4 minutes and was adamant not to move, but later realised there is no one to complain/prove the point to.
When b+c exceeded 270, I chose 370 and moved on.
There are many problems like this which would make you think that the ETS guys have lost sense. Probably, it is just a trap to make you loose time and control. We should choose the "best possible" answer and move on.
Parallel_Ans.JPG [ 28.66 KiB | Viewed 630 times ]