How many questions out of 100 do I need to attempt in IPMAT to get a seat in IIM Indore?

There are total 100 questions in IPMAT and candidates have to answer the questions in 120 minutes. There are 3 sections and the duration for each section is 40 minutes. For every correct question you get +4 and for every incorrect answer there is a deduction of 1 mark. The cutoff for last year was around 306 so in order to get the interview call you need to attempt around 82-85 questions with an accuracy of 80 %. The more you increase your accuracy the lesser the pressure of attempting more questions.