Get BBA/MBA book written by Fahim Abbasi or notes of Anees Hussain along with regular study of DAWN.
Ask any senior friend to help you in quick maths and word problems. Mostly tests comprises of English (sentence correction, antonyms , synonyms) Maths (quick maths & word problems) IQ (Picture pattern, number series) GK (Current questions from DAWN)
If you feel difficulty in getting notes, visit personally to Fahim Abbasi's center "Students Corner" or Anees Hussain, and ask them for notes and guidance, Im sure they wont deny.
'Never think that God's delays are God's denials. Hold on; hold fast; hold out. Patience is genius!