Originally Posted by bear

the below image is what you said had problems on line 5 and 7 . although they are good and sound as per the laws of algebra .



now lets examine what you have asked to analyse .
according to you AND-ing ( conjunction) should be done in the end and first we need to perform the OR ( disjunction )
lets have a look at the table for A and ( B or C )




just look at the line 2 , here FPSC violated the rule ( although i used the expression just like you asked me to use)



in short the 2012 rules were almost same as those in 2013 but candidates in 2012 were dealt according to the old rules of 2001 - 2002 - 2003 . the flawed rule of 2012 could allow the candidates , failed in aggregate but pass in both compulsory and optional , to appear in interview . but this never happened because people never bothered to interpret rules .

now in 2013 fpsc suddenly woke up, changed the flawed rule and replaced it with an even tougher one .they also implemented it this time which shocked the candidates .