Regarding the explanations for the powerprep test 1 quants section

Hello everyone, I had just given the powerprep test 1 and wanted to know if there is a dedicated place on gregmat or somewhere else where I can find the explanations for the answers to the quantitavie sections, any leads would be helpful, thanks

https://new.gregmat.com/course/powerprep-walkthroughs

Thanks a lot my guy