GMAT 610 to 730 Q50 using only GMAT Club Resources for Quant

In this video, we interviewed Dauan, a French Korean GMAT student, who improved from 610 to 730 on the GMAT within 4 months. After getting 610 in this first diagnostic test, he knew that he had only around 4 months to prepare and that he had only one shot which if he mess up can't afford to wait for the following year.