How important is this book if I need 49-51 on Quants? I already have MGMAT 8 strategy guides, Kaplan 800
maths workbook , GMAT club all tests and Gmat hacks extreme challenge 100 questions.
Do I still require to buy this? I stay in oman and shipping to oman ( on priority basis) costs 75 $. Though money isnt an issue, the more important thing is necessity..
Thanks for your suggestions.