Lots of Quant CATs & Hard Questions for those training to score high

Good questions, explanations, and analytics. It's helpful to have so many Quant CATs, for those training to score high. I always recommend the GMAT Prep CATs first, but there are only 6 of them.

As advertised, there are a lot of hard questions.

I did a brief analysis comparing the question difficulty of 2 CATs: GMAT Club Free Test vs a CAT from GMAT Prep Exam Pack 2.

GMAT Club:
Quant score 37
Included 15 700 level Questions.
These 15 questions had an average % correct of 51% in GMAT Club Forum.

Exam Pack 2:
Quant Score 45
Although the Quant score was significantly higher, the questions were easier. The hardest 15 questions had an average % correct of 59% in GMAT Club Forum