Please tell me the procedure to be followed in attacking this question..
Need to improve DS. Got Q50 on GMAT Prep, with 7 incorrects and all 7 were DS problems.
At one point of time I completely blacked out on this, picking numbers..
There was another post in which this problem was placed forward but no one got it correct, http://www.gmatclub.com/phpbb/viewtopic ... t=xy+plane
Will post the OA later..
DS1.JPG [ 62.81 KiB | Viewed 581 times ]