Are the quant problems, categorized as easy, medium, hard and extreme from original gre question papers and is there are possibility that they would be repeated in the exam in 2023?
No
No
Which book should I be following to get an idea about exactly what type of questions would I be seeing in gre? Because the questions in the big book are too easy compared to the present standard of ETS and the ETS quant book has very less practice question.