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Re: In the fi gure, what is the value of y [#permalink]
06 Jul 2012, 21:06
Please don't assume things by yourself. That's the worst thing one can do on a GMAT. What you see can be misleading. Don't let it. Given: a. Y=2x => Nothing. Because D can be any where within the triangle. One such point is where you said - circle scenario. Remember in circle scenario the radius are equal. Here, you cannot assume that. Hence, Insuff. b. angle DCA = 30. Again here, since we don't know AD=DC, or if DC is angular bisector. Therefore, insuff. c. Together, still insuff because we still don't know value of angle DAC.
http://blog.ryandumlao.com/wp-content/uploads/2016/05/IMG_20130807_232118.jpg The GMAT is the biggest point of worry for most aspiring applicants, and with good reason. It’s another standardized test when most of us...