dear candidate,

anything north of 35 attempts in a section with decent accuracy almost guarantees a 99.9+ in that section.

Mathematical Skills section . For 40 questions, if you are good, you will take anywhere between 30 to 45 minutes. This is because most of the questions are fairly straightforward and don't require a lot of work to arrive at the answer. In the Mathematical Skills section, if you know the formulae and can calculate faster, I don't see why one can't attempt 30+ in this section with ~100% accuracy.

Intelligence & Critical Reasoning A good attempt in this section is 30+ with 80-90+% accuracy.

Data Analysis & Sufficiency is time consuming compared to Intelligence & Critical Reasoning section. Anywhere between 40-45 minutes can be spent here and the target should be to get around 30 questions right.