Here is the question as seen in the exam:
In the above, without mentioning “Minor Arc”, don’t we have to consider the Arc DC (With the 30) AND the Arc DC (With the 330) and the same for the smaller circle.
So, accordingly, won’t the answer be D - Cannot be determined.
Please help.
cc @gregmat
I think that if it isn’t mentioned specifically than we can assume that it’s minor arc always or at-least that is what I did for GMAT (for more context : LINK). Thus, I guess Greg is assumed the same!
Oh, alright. Thank you. GRE has these “Gotchas” like Numbers when nothing is mentioned whereas a person might assume Int. So, I thought to assume nothing unless specifically given.
You’re correct. The question has an ambiguity in my opinion (albeit subtle). We can go to page 56 of the ETS Math Review: https://www.chulatutor.com/book/gre_math_review.pdf
In that, it says that arcs are usually represented by three points to avoid the ambiguity you described. I’ll flag this.
Thank you for the answer!
I was very confused.
Nice find. I’ll fix
Thanks Greg !
Where can I find these mini-tests?