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.