Quantitative | Re: How long is too long on 700-800 level Q?

Working through the OG2017 via the MGMAT software. The "devilish" questions (700-800 level) are hard but I can usually manage to get about 70% of them correct. That being said I need to slow my pace significantly.On average between 3:00 and 4:00 minutes . Does anyone have suggestions for cutting off a question. What kind of timing do you guys use in your head so that you know when to cut your losses and eliminate some answers and just guess and move on?

I usually can solve the 300-500